FAILED: patch "[PATCH] usb: musb: omap2430: fix device leak at unbind" failed to apply to 5.4-stable tree
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@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 1473e9e7679bd4f5a62d1abccae894fb86de280f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025082155-sympathy-finally-e1ad@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 1473e9e7679bd4f5a62d1abccae894fb86de280f Mon Sep 17 00:00:00 2001 From: Johan Hovold johan@kernel.org Date: Thu, 24 Jul 2025 11:19:09 +0200 Subject: [PATCH] usb: musb: omap2430: fix device leak at unbind
Make sure to drop the reference to the control device taken by of_find_device_by_node() during probe when the driver is unbound.
Fixes: 8934d3e4d0e7 ("usb: musb: omap2430: Don't use omap_get_control_dev()") Cc: stable@vger.kernel.org # 3.13 Cc: Roger Quadros rogerq@kernel.org Signed-off-by: Johan Hovold johan@kernel.org Link: https://lore.kernel.org/r/20250724091910.21092-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 2970967a4fd2..36f756f9b7f6 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -400,7 +400,7 @@ static int omap2430_probe(struct platform_device *pdev) ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources); if (ret) { dev_err(&pdev->dev, "failed to add resources\n"); - goto err2; + goto err_put_control_otghs; }
if (populate_irqs) { @@ -413,7 +413,7 @@ static int omap2430_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { ret = -EINVAL; - goto err2; + goto err_put_control_otghs; }
musb_res[i].start = res->start; @@ -441,14 +441,14 @@ static int omap2430_probe(struct platform_device *pdev) ret = platform_device_add_resources(musb, musb_res, i); if (ret) { dev_err(&pdev->dev, "failed to add IRQ resources\n"); - goto err2; + goto err_put_control_otghs; } }
ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); if (ret) { dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err2; + goto err_put_control_otghs; }
pm_runtime_enable(glue->dev); @@ -463,7 +463,9 @@ static int omap2430_probe(struct platform_device *pdev)
err3: pm_runtime_disable(glue->dev); - +err_put_control_otghs: + if (!IS_ERR(glue->control_otghs)) + put_device(glue->control_otghs); err2: platform_device_put(musb);
@@ -477,6 +479,8 @@ static void omap2430_remove(struct platform_device *pdev)
platform_device_unregister(glue->musb); pm_runtime_disable(glue->dev); + if (!IS_ERR(glue->control_otghs)) + put_device(glue->control_otghs); }
#ifdef CONFIG_PM
From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit cb020bf52253327fe382e10bcae02a4f1da33c04 ]
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void.
Trivially convert this driver from always returning zero in the remove callback to the void returning variant.
Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Link: https://lore.kernel.org/r/20230405141009.3400693-8-u.kleine-koenig@pengutron... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Stable-dep-of: 1473e9e7679b ("usb: musb: omap2430: fix device leak at unbind") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/musb/omap2430.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 8def19fc5025..56f4fa411e27 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -505,14 +505,12 @@ static int omap2430_probe(struct platform_device *pdev) return ret; }
-static int omap2430_remove(struct platform_device *pdev) +static void omap2430_remove(struct platform_device *pdev) { struct omap2430_glue *glue = platform_get_drvdata(pdev);
platform_device_unregister(glue->musb); pm_runtime_disable(glue->dev); - - return 0; }
#ifdef CONFIG_PM @@ -579,7 +577,7 @@ MODULE_DEVICE_TABLE(of, omap2430_id_table);
static struct platform_driver omap2430_driver = { .probe = omap2430_probe, - .remove = omap2430_remove, + .remove_new = omap2430_remove, .driver = { .name = "musb-omap2430", .pm = DEV_PM_OPS,
From: Johan Hovold johan@kernel.org
[ Upstream commit 1473e9e7679bd4f5a62d1abccae894fb86de280f ]
Make sure to drop the reference to the control device taken by of_find_device_by_node() during probe when the driver is unbound.
Fixes: 8934d3e4d0e7 ("usb: musb: omap2430: Don't use omap_get_control_dev()") Cc: stable@vger.kernel.org # 3.13 Cc: Roger Quadros rogerq@kernel.org Signed-off-by: Johan Hovold johan@kernel.org Link: https://lore.kernel.org/r/20250724091910.21092-5-johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org [ Removed populate_irqs-related goto changes ] Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/musb/omap2430.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 56f4fa411e27..db4e9b46fb8a 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -476,13 +476,13 @@ static int omap2430_probe(struct platform_device *pdev) ARRAY_SIZE(musb_resources)); if (ret) { dev_err(&pdev->dev, "failed to add resources\n"); - goto err2; + goto err_put_control_otghs; }
ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); if (ret) { dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err2; + goto err_put_control_otghs; }
pm_runtime_enable(glue->dev); @@ -497,7 +497,9 @@ static int omap2430_probe(struct platform_device *pdev)
err3: pm_runtime_disable(glue->dev); - +err_put_control_otghs: + if (!IS_ERR(glue->control_otghs)) + put_device(glue->control_otghs); err2: platform_device_put(musb);
@@ -511,6 +513,8 @@ static void omap2430_remove(struct platform_device *pdev)
platform_device_unregister(glue->musb); pm_runtime_disable(glue->dev); + if (!IS_ERR(glue->control_otghs)) + put_device(glue->control_otghs); }
#ifdef CONFIG_PM
linux-stable-mirror@lists.linaro.org
-
gregkh＠linuxfoundation.org -
Sasha Levin