November 2022 - Linux-stable-mirror

FAILED: patch "[PATCH] iio: pressure: ms5611: fixed value compensation bug" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: 17f442e7e475 ("iio: pressure: ms5611: fixed value compensation bug") dc19fa63ad80 ("iio: ms5611: Simplify IO callback parameters") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 17f442e7e47579d3881fc4d47354eaef09302e6f Mon Sep 17 00:00:00 2001 From: Mitja Spes <mitja(a)lxnav.com> Date: Fri, 21 Oct 2022 15:58:20 +0200 Subject: [PATCH] iio: pressure: ms5611: fixed value compensation bug When using multiple instances of this driver the compensation PROM was overwritten by the last initialized sensor. Now each sensor has own PROM storage. Signed-off-by: Mitja Spes <mitja(a)lxnav.com> Fixes: 9690d81a02dc ("iio: pressure: ms5611: add support for MS5607 temperature and pressure sensor") Link: https://lore.kernel.org/r/20221021135827.1444793-2-mitja@lxnav.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index cbc9349c342a..550b75b7186f 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -25,13 +25,6 @@ enum { MS5607, }; -struct ms5611_chip_info { - u16 prom[MS5611_PROM_WORDS_NB]; - - int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info, - s32 *temp, s32 *pressure); -}; - /* * OverSampling Rate descriptor. * Warning: cmd MUST be kept aligned on a word boundary (see @@ -50,12 +43,15 @@ struct ms5611_state { const struct ms5611_osr *pressure_osr; const struct ms5611_osr *temp_osr; + u16 prom[MS5611_PROM_WORDS_NB]; + int (*reset)(struct ms5611_state *st); int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word); int (*read_adc_temp_and_pressure)(struct ms5611_state *st, s32 *temp, s32 *pressure); - struct ms5611_chip_info *chip_info; + int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp, + s32 *pressure); struct regulator *vdd; }; diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index 717521de66c4..c564a1d6cafe 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -85,7 +85,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) struct ms5611_state *st = iio_priv(indio_dev); for (i = 0; i < MS5611_PROM_WORDS_NB; i++) { - ret = st->read_prom_word(st, i, &st->chip_info->prom[i]); + ret = st->read_prom_word(st, i, &st->prom[i]); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read prom at %d\n", i); @@ -93,7 +93,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) } } - if (!ms5611_prom_is_valid(st->chip_info->prom, MS5611_PROM_WORDS_NB)) { + if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) { dev_err(&indio_dev->dev, "PROM integrity check failed\n"); return -ENODEV; } @@ -114,21 +114,20 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev, return ret; } - return st->chip_info->temp_and_pressure_compensate(st->chip_info, - temp, pressure); + return st->compensate_temp_and_pressure(st, temp, pressure); } -static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5611_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 16) + ((chip_info->prom[4] * dt) >> 7); - sens = ((s64)chip_info->prom[1] << 15) + ((chip_info->prom[3] * dt) >> 8); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7); + sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2; @@ -154,17 +153,17 @@ static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_inf return 0; } -static int ms5607_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5607_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 17) + ((chip_info->prom[4] * dt) >> 6); - sens = ((s64)chip_info->prom[1] << 16) + ((chip_info->prom[3] * dt) >> 7); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 17) + ((st->prom[4] * dt) >> 6); + sens = ((s64)st->prom[1] << 16) + ((st->prom[3] * dt) >> 7); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2, tmp; @@ -342,15 +341,6 @@ static int ms5611_write_raw(struct iio_dev *indio_dev, static const unsigned long ms5611_scan_masks[] = {0x3, 0}; -static struct ms5611_chip_info chip_info_tbl[] = { - [MS5611] = { - .temp_and_pressure_compensate = ms5611_temp_and_pressure_compensate, - }, - [MS5607] = { - .temp_and_pressure_compensate = ms5607_temp_and_pressure_compensate, - } -}; - static const struct iio_chan_spec ms5611_channels[] = { { .type = IIO_PRESSURE, @@ -433,7 +423,20 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, struct ms5611_state *st = iio_priv(indio_dev); mutex_init(&st->lock); - st->chip_info = &chip_info_tbl[type]; + + switch (type) { + case MS5611: + st->compensate_temp_and_pressure = + ms5611_temp_and_pressure_compensate; + break; + case MS5607: + st->compensate_temp_and_pressure = + ms5607_temp_and_pressure_compensate; + break; + default: + return -EINVAL; + } + st->temp_osr = &ms5611_avail_temp_osr[ARRAY_SIZE(ms5611_avail_temp_osr) - 1]; st->pressure_osr =

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FAILED: patch "[PATCH] iio: pressure: ms5611: fixed value compensation bug" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: 17f442e7e475 ("iio: pressure: ms5611: fixed value compensation bug") dc19fa63ad80 ("iio: ms5611: Simplify IO callback parameters") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 17f442e7e47579d3881fc4d47354eaef09302e6f Mon Sep 17 00:00:00 2001 From: Mitja Spes <mitja(a)lxnav.com> Date: Fri, 21 Oct 2022 15:58:20 +0200 Subject: [PATCH] iio: pressure: ms5611: fixed value compensation bug When using multiple instances of this driver the compensation PROM was overwritten by the last initialized sensor. Now each sensor has own PROM storage. Signed-off-by: Mitja Spes <mitja(a)lxnav.com> Fixes: 9690d81a02dc ("iio: pressure: ms5611: add support for MS5607 temperature and pressure sensor") Link: https://lore.kernel.org/r/20221021135827.1444793-2-mitja@lxnav.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index cbc9349c342a..550b75b7186f 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -25,13 +25,6 @@ enum { MS5607, }; -struct ms5611_chip_info { - u16 prom[MS5611_PROM_WORDS_NB]; - - int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info, - s32 *temp, s32 *pressure); -}; - /* * OverSampling Rate descriptor. * Warning: cmd MUST be kept aligned on a word boundary (see @@ -50,12 +43,15 @@ struct ms5611_state { const struct ms5611_osr *pressure_osr; const struct ms5611_osr *temp_osr; + u16 prom[MS5611_PROM_WORDS_NB]; + int (*reset)(struct ms5611_state *st); int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word); int (*read_adc_temp_and_pressure)(struct ms5611_state *st, s32 *temp, s32 *pressure); - struct ms5611_chip_info *chip_info; + int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp, + s32 *pressure); struct regulator *vdd; }; diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index 717521de66c4..c564a1d6cafe 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -85,7 +85,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) struct ms5611_state *st = iio_priv(indio_dev); for (i = 0; i < MS5611_PROM_WORDS_NB; i++) { - ret = st->read_prom_word(st, i, &st->chip_info->prom[i]); + ret = st->read_prom_word(st, i, &st->prom[i]); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read prom at %d\n", i); @@ -93,7 +93,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) } } - if (!ms5611_prom_is_valid(st->chip_info->prom, MS5611_PROM_WORDS_NB)) { + if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) { dev_err(&indio_dev->dev, "PROM integrity check failed\n"); return -ENODEV; } @@ -114,21 +114,20 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev, return ret; } - return st->chip_info->temp_and_pressure_compensate(st->chip_info, - temp, pressure); + return st->compensate_temp_and_pressure(st, temp, pressure); } -static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5611_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 16) + ((chip_info->prom[4] * dt) >> 7); - sens = ((s64)chip_info->prom[1] << 15) + ((chip_info->prom[3] * dt) >> 8); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7); + sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2; @@ -154,17 +153,17 @@ static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_inf return 0; } -static int ms5607_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5607_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 17) + ((chip_info->prom[4] * dt) >> 6); - sens = ((s64)chip_info->prom[1] << 16) + ((chip_info->prom[3] * dt) >> 7); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 17) + ((st->prom[4] * dt) >> 6); + sens = ((s64)st->prom[1] << 16) + ((st->prom[3] * dt) >> 7); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2, tmp; @@ -342,15 +341,6 @@ static int ms5611_write_raw(struct iio_dev *indio_dev, static const unsigned long ms5611_scan_masks[] = {0x3, 0}; -static struct ms5611_chip_info chip_info_tbl[] = { - [MS5611] = { - .temp_and_pressure_compensate = ms5611_temp_and_pressure_compensate, - }, - [MS5607] = { - .temp_and_pressure_compensate = ms5607_temp_and_pressure_compensate, - } -}; - static const struct iio_chan_spec ms5611_channels[] = { { .type = IIO_PRESSURE, @@ -433,7 +423,20 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, struct ms5611_state *st = iio_priv(indio_dev); mutex_init(&st->lock); - st->chip_info = &chip_info_tbl[type]; + + switch (type) { + case MS5611: + st->compensate_temp_and_pressure = + ms5611_temp_and_pressure_compensate; + break; + case MS5607: + st->compensate_temp_and_pressure = + ms5607_temp_and_pressure_compensate; + break; + default: + return -EINVAL; + } + st->temp_osr = &ms5611_avail_temp_osr[ARRAY_SIZE(ms5611_avail_temp_osr) - 1]; st->pressure_osr =

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FAILED: patch "[PATCH] iio: pressure: ms5611: fixed value compensation bug" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: 17f442e7e475 ("iio: pressure: ms5611: fixed value compensation bug") dc19fa63ad80 ("iio: ms5611: Simplify IO callback parameters") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 17f442e7e47579d3881fc4d47354eaef09302e6f Mon Sep 17 00:00:00 2001 From: Mitja Spes <mitja(a)lxnav.com> Date: Fri, 21 Oct 2022 15:58:20 +0200 Subject: [PATCH] iio: pressure: ms5611: fixed value compensation bug When using multiple instances of this driver the compensation PROM was overwritten by the last initialized sensor. Now each sensor has own PROM storage. Signed-off-by: Mitja Spes <mitja(a)lxnav.com> Fixes: 9690d81a02dc ("iio: pressure: ms5611: add support for MS5607 temperature and pressure sensor") Link: https://lore.kernel.org/r/20221021135827.1444793-2-mitja@lxnav.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index cbc9349c342a..550b75b7186f 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -25,13 +25,6 @@ enum { MS5607, }; -struct ms5611_chip_info { - u16 prom[MS5611_PROM_WORDS_NB]; - - int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info, - s32 *temp, s32 *pressure); -}; - /* * OverSampling Rate descriptor. * Warning: cmd MUST be kept aligned on a word boundary (see @@ -50,12 +43,15 @@ struct ms5611_state { const struct ms5611_osr *pressure_osr; const struct ms5611_osr *temp_osr; + u16 prom[MS5611_PROM_WORDS_NB]; + int (*reset)(struct ms5611_state *st); int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word); int (*read_adc_temp_and_pressure)(struct ms5611_state *st, s32 *temp, s32 *pressure); - struct ms5611_chip_info *chip_info; + int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp, + s32 *pressure); struct regulator *vdd; }; diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index 717521de66c4..c564a1d6cafe 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -85,7 +85,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) struct ms5611_state *st = iio_priv(indio_dev); for (i = 0; i < MS5611_PROM_WORDS_NB; i++) { - ret = st->read_prom_word(st, i, &st->chip_info->prom[i]); + ret = st->read_prom_word(st, i, &st->prom[i]); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read prom at %d\n", i); @@ -93,7 +93,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) } } - if (!ms5611_prom_is_valid(st->chip_info->prom, MS5611_PROM_WORDS_NB)) { + if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) { dev_err(&indio_dev->dev, "PROM integrity check failed\n"); return -ENODEV; } @@ -114,21 +114,20 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev, return ret; } - return st->chip_info->temp_and_pressure_compensate(st->chip_info, - temp, pressure); + return st->compensate_temp_and_pressure(st, temp, pressure); } -static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5611_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 16) + ((chip_info->prom[4] * dt) >> 7); - sens = ((s64)chip_info->prom[1] << 15) + ((chip_info->prom[3] * dt) >> 8); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7); + sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2; @@ -154,17 +153,17 @@ static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_inf return 0; } -static int ms5607_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info, +static int ms5607_temp_and_pressure_compensate(struct ms5611_state *st, s32 *temp, s32 *pressure) { s32 t = *temp, p = *pressure; s64 off, sens, dt; - dt = t - (chip_info->prom[5] << 8); - off = ((s64)chip_info->prom[2] << 17) + ((chip_info->prom[4] * dt) >> 6); - sens = ((s64)chip_info->prom[1] << 16) + ((chip_info->prom[3] * dt) >> 7); + dt = t - (st->prom[5] << 8); + off = ((s64)st->prom[2] << 17) + ((st->prom[4] * dt) >> 6); + sens = ((s64)st->prom[1] << 16) + ((st->prom[3] * dt) >> 7); - t = 2000 + ((chip_info->prom[6] * dt) >> 23); + t = 2000 + ((st->prom[6] * dt) >> 23); if (t < 2000) { s64 off2, sens2, t2, tmp; @@ -342,15 +341,6 @@ static int ms5611_write_raw(struct iio_dev *indio_dev, static const unsigned long ms5611_scan_masks[] = {0x3, 0}; -static struct ms5611_chip_info chip_info_tbl[] = { - [MS5611] = { - .temp_and_pressure_compensate = ms5611_temp_and_pressure_compensate, - }, - [MS5607] = { - .temp_and_pressure_compensate = ms5607_temp_and_pressure_compensate, - } -}; - static const struct iio_chan_spec ms5611_channels[] = { { .type = IIO_PRESSURE, @@ -433,7 +423,20 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, struct ms5611_state *st = iio_priv(indio_dev); mutex_init(&st->lock); - st->chip_info = &chip_info_tbl[type]; + + switch (type) { + case MS5611: + st->compensate_temp_and_pressure = + ms5611_temp_and_pressure_compensate; + break; + case MS5607: + st->compensate_temp_and_pressure = + ms5607_temp_and_pressure_compensate; + break; + default: + return -EINVAL; + } + st->temp_osr = &ms5611_avail_temp_osr[ARRAY_SIZE(ms5611_avail_temp_osr) - 1]; st->pressure_osr =

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FAILED: patch "[PATCH] iio: accel: bma400: Ensure VDDIO is enable defore reading the" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: 57572cacd36e ("iio: accel: bma400: Ensure VDDIO is enable defore reading the chip ID.") 12c99f859fd3 ("iio: accel: bma400: conversion to device-managed function") 02e2af20f4f9 ("Merge tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 57572cacd36e6d4be7722d7770d23f4430219827 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Date: Sun, 2 Oct 2022 15:41:33 +0100 Subject: [PATCH] iio: accel: bma400: Ensure VDDIO is enable defore reading the chip ID. The regulator enables were after the check on the chip variant, which was very unlikely to return a correct value when not powered. Presumably all the device anyone is testing on have a regulator that is already powered up when this code runs for reasons beyond the scope of this driver. Move the read call down a few lines. Fixes: 3cf7ded15e40 ("iio: accel: bma400: basic regulator support") Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Reviewed-by: Dan Robertson <dan(a)dlrobertson.com> Cc: <Stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20221002144133.3771029-1-jic23@kernel.org diff --git a/drivers/iio/accel/bma400_core.c b/drivers/iio/accel/bma400_core.c index ad8fce3e08cd..490c342ef72a 100644 --- a/drivers/iio/accel/bma400_core.c +++ b/drivers/iio/accel/bma400_core.c @@ -869,18 +869,6 @@ static int bma400_init(struct bma400_data *data) unsigned int val; int ret; - /* Try to read chip_id register. It must return 0x90. */ - ret = regmap_read(data->regmap, BMA400_CHIP_ID_REG, &val); - if (ret) { - dev_err(data->dev, "Failed to read chip id register\n"); - return ret; - } - - if (val != BMA400_ID_REG_VAL) { - dev_err(data->dev, "Chip ID mismatch\n"); - return -ENODEV; - } - data->regulators[BMA400_VDD_REGULATOR].supply = "vdd"; data->regulators[BMA400_VDDIO_REGULATOR].supply = "vddio"; ret = devm_regulator_bulk_get(data->dev, @@ -906,6 +894,18 @@ static int bma400_init(struct bma400_data *data) if (ret) return ret; + /* Try to read chip_id register. It must return 0x90. */ + ret = regmap_read(data->regmap, BMA400_CHIP_ID_REG, &val); + if (ret) { + dev_err(data->dev, "Failed to read chip id register\n"); + return ret; + } + + if (val != BMA400_ID_REG_VAL) { + dev_err(data->dev, "Chip ID mismatch\n"); + return -ENODEV; + } + ret = bma400_get_power_mode(data); if (ret) { dev_err(data->dev, "Failed to get the initial power-mode\n");

3 years

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FAILED: patch "[PATCH] iio: accel: bma400: Ensure VDDIO is enable defore reading the" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: 57572cacd36e ("iio: accel: bma400: Ensure VDDIO is enable defore reading the chip ID.") 12c99f859fd3 ("iio: accel: bma400: conversion to device-managed function") 02e2af20f4f9 ("Merge tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 57572cacd36e6d4be7722d7770d23f4430219827 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Date: Sun, 2 Oct 2022 15:41:33 +0100 Subject: [PATCH] iio: accel: bma400: Ensure VDDIO is enable defore reading the chip ID. The regulator enables were after the check on the chip variant, which was very unlikely to return a correct value when not powered. Presumably all the device anyone is testing on have a regulator that is already powered up when this code runs for reasons beyond the scope of this driver. Move the read call down a few lines. Fixes: 3cf7ded15e40 ("iio: accel: bma400: basic regulator support") Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Reviewed-by: Dan Robertson <dan(a)dlrobertson.com> Cc: <Stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20221002144133.3771029-1-jic23@kernel.org diff --git a/drivers/iio/accel/bma400_core.c b/drivers/iio/accel/bma400_core.c index ad8fce3e08cd..490c342ef72a 100644 --- a/drivers/iio/accel/bma400_core.c +++ b/drivers/iio/accel/bma400_core.c @@ -869,18 +869,6 @@ static int bma400_init(struct bma400_data *data) unsigned int val; int ret; - /* Try to read chip_id register. It must return 0x90. */ - ret = regmap_read(data->regmap, BMA400_CHIP_ID_REG, &val); - if (ret) { - dev_err(data->dev, "Failed to read chip id register\n"); - return ret; - } - - if (val != BMA400_ID_REG_VAL) { - dev_err(data->dev, "Chip ID mismatch\n"); - return -ENODEV; - } - data->regulators[BMA400_VDD_REGULATOR].supply = "vdd"; data->regulators[BMA400_VDDIO_REGULATOR].supply = "vddio"; ret = devm_regulator_bulk_get(data->dev, @@ -906,6 +894,18 @@ static int bma400_init(struct bma400_data *data) if (ret) return ret; + /* Try to read chip_id register. It must return 0x90. */ + ret = regmap_read(data->regmap, BMA400_CHIP_ID_REG, &val); + if (ret) { + dev_err(data->dev, "Failed to read chip id register\n"); + return ret; + } + + if (val != BMA400_ID_REG_VAL) { + dev_err(data->dev, "Chip ID mismatch\n"); + return -ENODEV; + } + ret = bma400_get_power_mode(data); if (ret) { dev_err(data->dev, "Failed to get the initial power-mode\n");

3 years

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FAILED: patch "[PATCH] usb: cdns3: host: fix endless superspeed hub port reset" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: 9d5333c93134 ("usb: cdns3: host: fix endless superspeed hub port reset") 88171f67a2c1 ("usb: cdns3: Removes xhci_cdns3_suspend_quirk from host-export.h") 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver") e93e58d27402 ("usb: cdnsp: Device side header file for CDNSP driver") 0b490046d8d7 ("usb: cdns3: Refactoring names in reusable code") 394c3a144de8 ("usb: cdns3: Moves reusable code to separate module") f738957277ba ("usb: cdns3: Split core.c into cdns3-plat and core.c file") db8892bb1bb6 ("usb: cdns3: Add support for DRD CDNSP") d2a968dddf98 ("Merge tag 'usb-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9d5333c931347005352d5b8beaa43528c94cfc9c Mon Sep 17 00:00:00 2001 From: Li Jun <jun.li(a)nxp.com> Date: Wed, 26 Oct 2022 15:07:49 -0400 Subject: [PATCH] usb: cdns3: host: fix endless superspeed hub port reset When usb 3.0 hub connect with one USB 2.0 device and NO USB 3.0 device, some usb hub reports endless port reset message. [ 190.324169] usb 2-1: new SuperSpeed USB device number 88 using xhci-hcd [ 190.352834] hub 2-1:1.0: USB hub found [ 190.356995] hub 2-1:1.0: 4 ports detected [ 190.700056] usb 2-1: USB disconnect, device number 88 [ 192.472139] usb 2-1: new SuperSpeed USB device number 89 using xhci-hcd [ 192.500820] hub 2-1:1.0: USB hub found [ 192.504977] hub 2-1:1.0: 4 ports detected [ 192.852066] usb 2-1: USB disconnect, device number 89 The reason is the runtime pm state of USB2.0 port is active and USB 3.0 port is suspend, so parent device is active state. cat /sys/bus/platform/devices/5b110000.usb/5b130000.usb/xhci-hcd.1.auto/usb2/power/runtime_status suspended cat /sys/bus/platform/devices/5b110000.usb/5b130000.usb/xhci-hcd.1.auto/usb1/power/runtime_status active cat /sys/bus/platform/devices/5b110000.usb/5b130000.usb/xhci-hcd.1.auto/power/runtime_status active cat /sys/bus/platform/devices/5b110000.usb/5b130000.usb/power/runtime_status active So xhci_cdns3_suspend_quirk() have not called. U3 configure is not applied. move U3 configure into host start. Reinit again in resume function in case controller power lost during suspend. Cc: stable(a)vger.kernel.org 5.10 Signed-off-by: Li Jun <jun.li(a)nxp.com> Signed-off-by: Frank Li <Frank.Li(a)nxp.com> Reviewed-by: Peter Chen <peter.chen(a)kernel.org> Acked-by: Alexander Stein <alexander.stein(a)ew.tq-group.com> Link: https://lore.kernel.org/r/20221026190749.2280367-1-Frank.Li@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> diff --git a/drivers/usb/cdns3/host.c b/drivers/usb/cdns3/host.c index 9643b905e2d8..6164fc4c96a4 100644 --- a/drivers/usb/cdns3/host.c +++ b/drivers/usb/cdns3/host.c @@ -24,11 +24,37 @@ #define CFG_RXDET_P3_EN BIT(15) #define LPM_2_STB_SWITCH_EN BIT(25) -static int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd); +static void xhci_cdns3_plat_start(struct usb_hcd *hcd) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + u32 value; + + /* set usbcmd.EU3S */ + value = readl(&xhci->op_regs->command); + value |= CMD_PM_INDEX; + writel(value, &xhci->op_regs->command); + + if (hcd->regs) { + value = readl(hcd->regs + XECP_AUX_CTRL_REG1); + value |= CFG_RXDET_P3_EN; + writel(value, hcd->regs + XECP_AUX_CTRL_REG1); + + value = readl(hcd->regs + XECP_PORT_CAP_REG); + value |= LPM_2_STB_SWITCH_EN; + writel(value, hcd->regs + XECP_PORT_CAP_REG); + } +} + +static int xhci_cdns3_resume_quirk(struct usb_hcd *hcd) +{ + xhci_cdns3_plat_start(hcd); + return 0; +} static const struct xhci_plat_priv xhci_plat_cdns3_xhci = { .quirks = XHCI_SKIP_PHY_INIT | XHCI_AVOID_BEI, - .suspend_quirk = xhci_cdns3_suspend_quirk, + .plat_start = xhci_cdns3_plat_start, + .resume_quirk = xhci_cdns3_resume_quirk, }; static int __cdns_host_init(struct cdns *cdns) @@ -90,32 +116,6 @@ static int __cdns_host_init(struct cdns *cdns) return ret; } -static int xhci_cdns3_suspend_quirk(struct usb_hcd *hcd) -{ - struct xhci_hcd *xhci = hcd_to_xhci(hcd); - u32 value; - - if (pm_runtime_status_suspended(hcd->self.controller)) - return 0; - - /* set usbcmd.EU3S */ - value = readl(&xhci->op_regs->command); - value |= CMD_PM_INDEX; - writel(value, &xhci->op_regs->command); - - if (hcd->regs) { - value = readl(hcd->regs + XECP_AUX_CTRL_REG1); - value |= CFG_RXDET_P3_EN; - writel(value, hcd->regs + XECP_AUX_CTRL_REG1); - - value = readl(hcd->regs + XECP_PORT_CAP_REG); - value |= LPM_2_STB_SWITCH_EN; - writel(value, hcd->regs + XECP_PORT_CAP_REG); - } - - return 0; -} - static void cdns_host_exit(struct cdns *cdns) { kfree(cdns->xhci_plat_data);

3 years

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Re: Patch "l2tp: Serialize access to sk_user_data with sk_callback_lock" has been added to the 6.0-stable tree

by Jakub Sitnicki

On Mon, Nov 21, 2022 at 12:08 AM -05, Sasha Levin wrote: > This is a note to let you know that I've just added the patch titled > > l2tp: Serialize access to sk_user_data with sk_callback_lock > > to the 6.0-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > l2tp-serialize-access-to-sk_user_data-with-sk_callba.patch > and it can be found in the queue-6.0 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. Please don't add the commit below to stable tree, yet. We have a fix-up for it under review: https://lore.kernel.org/netdev/20221121085426.21315-1-jakub@cloudflare.com/ > commit 87a828cfa5ce4b2075d26660756c07751648d13f > Author: Jakub Sitnicki <jakub(a)cloudflare.com> > Date: Mon Nov 14 20:16:19 2022 +0100 > > l2tp: Serialize access to sk_user_data with sk_callback_lock > > [ Upstream commit b68777d54fac21fc833ec26ea1a2a84f975ab035 ] > > sk->sk_user_data has multiple users, which are not compatible with each > other. Writers must synchronize by grabbing the sk->sk_callback_lock. > > l2tp currently fails to grab the lock when modifying the underlying tunnel > socket fields. Fix it by adding appropriate locking. > > We err on the side of safety and grab the sk_callback_lock also inside the > sk_destruct callback overridden by l2tp, even though there should be no > refs allowing access to the sock at the time when sk_destruct gets called. > > v4: > - serialize write to sk_user_data in l2tp sk_destruct > > v3: > - switch from sock lock to sk_callback_lock > - document write-protection for sk_user_data > > v2: > - update Fixes to point to origin of the bug > - use real names in Reported/Tested-by tags > > Cc: Tom Parkin <tparkin(a)katalix.com> > Fixes: 3557baabf280 ("[L2TP]: PPP over L2TP driver core") > Reported-by: Haowei Yan <g1042620637(a)gmail.com> > Signed-off-by: Jakub Sitnicki <jakub(a)cloudflare.com> > Signed-off-by: David S. Miller <davem(a)davemloft.net> > Signed-off-by: Sasha Levin <sashal(a)kernel.org> > > diff --git a/include/net/sock.h b/include/net/sock.h > index f6e6838c82df..03a4ebe3ccc8 100644 > --- a/include/net/sock.h > +++ b/include/net/sock.h > @@ -323,7 +323,7 @@ struct sk_filter; > * @sk_tskey: counter to disambiguate concurrent tstamp requests > * @sk_zckey: counter to order MSG_ZEROCOPY notifications > * @sk_socket: Identd and reporting IO signals > - * @sk_user_data: RPC layer private data > + * @sk_user_data: RPC layer private data. Write-protected by @sk_callback_lock. > * @sk_frag: cached page frag > * @sk_peek_off: current peek_offset value > * @sk_send_head: front of stuff to transmit > diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c > index 7499c51b1850..754fdda8a5f5 100644 > --- a/net/l2tp/l2tp_core.c > +++ b/net/l2tp/l2tp_core.c > @@ -1150,8 +1150,10 @@ static void l2tp_tunnel_destruct(struct sock *sk) > } > > /* Remove hooks into tunnel socket */ > + write_lock_bh(&sk->sk_callback_lock); > sk->sk_destruct = tunnel->old_sk_destruct; > sk->sk_user_data = NULL; > + write_unlock_bh(&sk->sk_callback_lock); > > /* Call the original destructor */ > if (sk->sk_destruct) > @@ -1469,16 +1471,18 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net, > sock = sockfd_lookup(tunnel->fd, &ret); > if (!sock) > goto err; > - > - ret = l2tp_validate_socket(sock->sk, net, tunnel->encap); > - if (ret < 0) > - goto err_sock; > } > > + sk = sock->sk; > + write_lock(&sk->sk_callback_lock); > + > + ret = l2tp_validate_socket(sk, net, tunnel->encap); > + if (ret < 0) > + goto err_sock; > + > tunnel->l2tp_net = net; > pn = l2tp_pernet(net); > > - sk = sock->sk; > sock_hold(sk); > tunnel->sock = sk; > > @@ -1504,7 +1508,7 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net, > > setup_udp_tunnel_sock(net, sock, &udp_cfg); > } else { > - sk->sk_user_data = tunnel; > + rcu_assign_sk_user_data(sk, tunnel); > } > > tunnel->old_sk_destruct = sk->sk_destruct; > @@ -1518,6 +1522,7 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net, > if (tunnel->fd >= 0) > sockfd_put(sock); > > + write_unlock(&sk->sk_callback_lock); > return 0; > > err_sock: > @@ -1525,6 +1530,8 @@ int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net, > sock_release(sock); > else > sockfd_put(sock); > + > + write_unlock(&sk->sk_callback_lock); > err: > return ret; > }

3 years

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FAILED: patch "[PATCH] io_uring: update res mask in io_poll_check_events" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: b98186aee22f ("io_uring: update res mask in io_poll_check_events") d245bca6375b ("io_uring: don't expose io_fill_cqe_aux()") f3b44f92e59a ("io_uring: move read/write related opcodes to its own file") c98817e6cd44 ("io_uring: move remaining file table manipulation to filetable.c") 735729844819 ("io_uring: move rsrc related data, core, and commands") 3b77495a9723 ("io_uring: split provided buffers handling into its own file") 7aaff708a768 ("io_uring: move cancelation into its own file") 329061d3e2f9 ("io_uring: move poll handling into its own file") cfd22e6b3319 ("io_uring: add opcode name to io_op_defs") 92ac8beaea1f ("io_uring: include and forward-declaration sanitation") c9f06aa7de15 ("io_uring: move io_uring_task (tctx) helpers into its own file") a4ad4f748ea9 ("io_uring: move fdinfo helpers to its own file") e5550a1447bf ("io_uring: use io_is_uring_fops() consistently") 17437f311490 ("io_uring: move SQPOLL related handling into its own file") 59915143e89f ("io_uring: move timeout opcodes and handling into its own file") e418bbc97bff ("io_uring: move our reference counting into a header") 36404b09aa60 ("io_uring: move msg_ring into its own file") f9ead18c1058 ("io_uring: split network related opcodes into its own file") e0da14def1ee ("io_uring: move statx handling to its own file") a9c210cebe13 ("io_uring: move epoll handler to its own file") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From b98186aee22fa593bc8c6b2c5d839c2ee518bc8c Mon Sep 17 00:00:00 2001 From: Pavel Begunkov <asml.silence(a)gmail.com> Date: Thu, 17 Nov 2022 18:40:14 +0000 Subject: [PATCH] io_uring: update res mask in io_poll_check_events When io_poll_check_events() collides with someone attempting to queue a task work, it'll spin for one more time. However, it'll continue to use the mask from the first iteration instead of updating it. For example, if the first wake up was a EPOLLIN and the second EPOLLOUT, the userspace will not get EPOLLOUT in time. Clear the mask for all subsequent iterations to force vfs_poll(). Cc: stable(a)vger.kernel.org Fixes: aa43477b04025 ("io_uring: poll rework") Signed-off-by: Pavel Begunkov <asml.silence(a)gmail.com> Link: https://lore.kernel.org/r/2dac97e8f691231049cb259c4ae57e79e40b537c.16687102… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> diff --git a/io_uring/poll.c b/io_uring/poll.c index f500506984ec..90920abf91ff 100644 --- a/io_uring/poll.c +++ b/io_uring/poll.c @@ -258,6 +258,9 @@ static int io_poll_check_events(struct io_kiocb *req, bool *locked) return ret; } + /* force the next iteration to vfs_poll() */ + req->cqe.res = 0; + /* * Release all references, retry if someone tried to restart * task_work while we were executing it.

3 years

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FAILED: patch "[PATCH] drm/amd/display: Fix calculation for cursor CAB allocation" failed to apply to 6.0-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.0-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. Possible dependencies: 4d2852412306 ("drm/amd/display: Fix calculation for cursor CAB allocation") 525a65c77db5 ("drm/amd/display: Update MALL SS NumWays calculation") 6eef37460584 ("drm/amd/display: Add debug option for allocating extra way for cursor") 5c1a431aaf52 ("drm/amd/display: Added debug option for forcing subvp num ways") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 4d285241230676ba8b888701b89684b4e0360fcc Mon Sep 17 00:00:00 2001 From: George Shen <george.shen(a)amd.com> Date: Tue, 1 Nov 2022 23:03:03 -0400 Subject: [PATCH] drm/amd/display: Fix calculation for cursor CAB allocation [Why] The cursor size (in memory) is currently incorrectly calculated, resulting not enough CAB being allocated for static screen cursor in MALL refresh. This results in cursor image corruption. [How] Use cursor pitch instead of cursor width when calculating cursor size. Update num cache lines calculation to use the result of the cursor size calculation instead of manually recalculating again. Reviewed-by: Alvin Lee <Alvin.Lee2(a)amd.com> Acked-by: Tom Chung <chiahsuan.chung(a)amd.com> Signed-off-by: George Shen <george.shen(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org # 6.0.x diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c index cf5bd9713f54..ac41a763bb1d 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c @@ -283,8 +283,7 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c using the max for calculation */ if (hubp->curs_attr.width > 0) { - // Round cursor width to next multiple of 64 - cursor_size = (((hubp->curs_attr.width + 63) / 64) * 64) * hubp->curs_attr.height; + cursor_size = hubp->curs_attr.pitch * hubp->curs_attr.height; switch (pipe->stream->cursor_attributes.color_format) { case CURSOR_MODE_MONO: @@ -309,9 +308,9 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c cursor_size > 16384) { /* cursor_num_mblk = CEILING(num_cursors*cursor_width*cursor_width*cursor_Bpe/mblk_bytes, 1) */ - cache_lines_used += (((hubp->curs_attr.width * hubp->curs_attr.height * cursor_bpp + - DCN3_2_MALL_MBLK_SIZE_BYTES - 1) / DCN3_2_MALL_MBLK_SIZE_BYTES) * - DCN3_2_MALL_MBLK_SIZE_BYTES) / dc->caps.cache_line_size + 2; + cache_lines_used += (((cursor_size + DCN3_2_MALL_MBLK_SIZE_BYTES - 1) / + DCN3_2_MALL_MBLK_SIZE_BYTES) * DCN3_2_MALL_MBLK_SIZE_BYTES) / + dc->caps.cache_line_size + 2; } break; } @@ -727,10 +726,7 @@ void dcn32_update_mall_sel(struct dc *dc, struct dc_state *context) struct hubp *hubp = pipe->plane_res.hubp; if (pipe->stream && pipe->plane_state && hubp && hubp->funcs->hubp_update_mall_sel) { - //Round cursor width up to next multiple of 64 - int cursor_width = ((hubp->curs_attr.width + 63) / 64) * 64; - int cursor_height = hubp->curs_attr.height; - int cursor_size = cursor_width * cursor_height; + int cursor_size = hubp->curs_attr.pitch * hubp->curs_attr.height; switch (hubp->curs_attr.color_format) { case CURSOR_MODE_MONO:

3 years

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[PATCH] drm/vc4: Fix NULL pointer access in vc4_platform_drm_probe()

by Lino Sanfilippo

From: Lino Sanfilippo <l.sanfilippo(a)kunbus.com> In vc4_platform_drm_probe() function vc4_match_add_drivers() is called to find component matches for the component drivers. If no such match is found the passed variable "match" is still NULL after the function returns. Do not pass "match" to component_master_add_with_match() in this case since this results in a NULL pointer access as soon as match->num is used to allocate a component_match array. Instead return with -ENODEV from the drivers probe function. Fixes: c8b75bca92cb ("drm/vc4: Add KMS support for Raspberry Pi.") Cc: stable(a)vger.kernel.org Signed-off-by: Lino Sanfilippo <l.sanfilippo(a)kunbus.com> --- drivers/gpu/drm/vc4/vc4_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 2027063fdc30..2e53d7f8ad44 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -437,6 +437,9 @@ static int vc4_platform_drm_probe(struct platform_device *pdev) vc4_match_add_drivers(dev, &match, component_drivers, ARRAY_SIZE(component_drivers)); + if (!match) + return -ENODEV; + return component_master_add_with_match(dev, &vc4_drm_ops, match); } base-commit: 30a0b95b1335e12efef89dd78518ed3e4a71a763 -- 2.36.1

3 years

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