This is a note to let you know that I've just added the patch titled media: uvcvideo: Fix memory leak in uvc_gpio_parse 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=summary The filename of the patch is: media-uvcvideo-fix-memory-leak-in-uvc_gpio_parse.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@xxxxxxxxxxxxxxx> know about it. commit 1642ee1d995e8e4b081fdecccd2480b586d9c900 Author: José Expósito <jose.exposito89@xxxxxxxxx> Date: Sat Jan 8 18:04:39 2022 +0100 media: uvcvideo: Fix memory leak in uvc_gpio_parse [ Upstream commit f0f078457f18f10696888f8d0e6aba9deb9cde92 ] Previously the unit buffer was allocated before checking the IRQ for privacy GPIO. In case of error, the unit buffer was leaked. Allocate the unit buffer after the IRQ to avoid it. Addresses-Coverity-ID: 1474639 ("Resource leak") Fixes: 2886477ff987 ("media: uvcvideo: Implement UVC_EXT_GPIO_UNIT") Signed-off-by: José Expósito <jose.exposito89@xxxxxxxxx> Reviewed-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index d509a4a2f08e..822e9694f092 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -1553,10 +1553,6 @@ static int uvc_gpio_parse(struct uvc_device *dev) if (IS_ERR_OR_NULL(gpio_privacy)) return PTR_ERR_OR_ZERO(gpio_privacy); - unit = uvc_alloc_entity(UVC_EXT_GPIO_UNIT, UVC_EXT_GPIO_UNIT_ID, 0, 1); - if (!unit) - return -ENOMEM; - irq = gpiod_to_irq(gpio_privacy); if (irq < 0) { if (irq != EPROBE_DEFER) @@ -1565,6 +1561,10 @@ static int uvc_gpio_parse(struct uvc_device *dev) return irq; } + unit = uvc_alloc_entity(UVC_EXT_GPIO_UNIT, UVC_EXT_GPIO_UNIT_ID, 0, 1); + if (!unit) + return -ENOMEM; + unit->gpio.gpio_privacy = gpio_privacy; unit->gpio.irq = irq; unit->gpio.bControlSize = 1;