This is a note to let you know that I've just added the patch titled
media: dvb: i2c transfers over usb cannot be done from stack
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: media-dvb-i2c-transfers-over-usb-cannot-be-done-from-stack.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 6d33377f2abbf9f0e561b116dd468d1c3ff36a6a Mon Sep 17 00:00:00 2001
From: Laurent Caumont lcaumont2@gmail.com Date: Sat, 11 Nov 2017 12:44:46 -0500 Subject: media: dvb: i2c transfers over usb cannot be done from stack
From: Laurent Caumont lcaumont2@gmail.com
commit 6d33377f2abbf9f0e561b116dd468d1c3ff36a6a upstream.
Signed-off-by: Laurent Caumont lcaumont2@gmail.com Signed-off-by: Sean Young sean@mess.org Signed-off-by: Mauro Carvalho Chehab mchehab@s-opensource.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/media/usb/dvb-usb/dibusb-common.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
--- a/drivers/media/usb/dvb-usb/dibusb-common.c +++ b/drivers/media/usb/dvb-usb/dibusb-common.c @@ -179,8 +179,20 @@ EXPORT_SYMBOL(dibusb_i2c_algo);
int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val) { - u8 wbuf[1] = { offs }; - return dibusb_i2c_msg(d, 0x50, wbuf, 1, val, 1); + u8 *buf; + int rc; + + buf = kmalloc(2, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + buf[0] = offs; + + rc = dibusb_i2c_msg(d, 0x50, &buf[0], 1, &buf[1], 1); + *val = buf[1]; + kfree(buf); + + return rc; } EXPORT_SYMBOL(dibusb_read_eeprom_byte);
Patches currently in stable-queue which might be from lcaumont2@gmail.com are
queue-4.4/media-dvb-i2c-transfers-over-usb-cannot-be-done-from-stack.patch