Re: [PATCH] media: usb: fix memory leak in stk_camera_probe

From: Dongliang Mu
Date: Fri Jul 23 2021 - 06:12:07 EST


On Wed, Jul 14, 2021 at 11:23 AM Dongliang Mu <mudongliangabcd@xxxxxxxxx> wrote:
>
> stk_camera_probe mistakenly execute usb_get_intf and increase the
> refcount of interface->dev.
>
> Fix this by removing the execution of usb_get_intf.

Any idea about this patch?

>
> Reported-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
> Fixes: 0aa77f6c2954 ("[media] move the remaining USB drivers to drivers/media/usb")
> Signed-off-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
> ---
> drivers/media/usb/stkwebcam/stk-webcam.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c
> index a45d464427c4..5bd8e85b9452 100644
> --- a/drivers/media/usb/stkwebcam/stk-webcam.c
> +++ b/drivers/media/usb/stkwebcam/stk-webcam.c
> @@ -1311,7 +1311,6 @@ static int stk_camera_probe(struct usb_interface *interface,
>
> dev->udev = udev;
> dev->interface = interface;
> - usb_get_intf(interface);
>
> if (hflip != -1)
> dev->vsettings.hflip = hflip;
> --
> 2.25.1
>