From: Oliver Neukum <[email protected]> commit bf65f8aabdb37bc1a785884374e919477fe13e10 upstream.
The premature free in the error path is blocked by V4L refcounting, not USB refcounting. Thanks to Ben Hutchings for review. [v2] corrected attributions Signed-off-by: Oliver Neukum <[email protected]> Fixes: 50e704453553 ("media: usbtv: prevent double free in error case") CC: [email protected] Reported-by: Ben Hutchings <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/media/usb/usbtv/usbtv-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/media/usb/usbtv/usbtv-core.c +++ b/drivers/media/usb/usbtv/usbtv-core.c @@ -113,7 +113,8 @@ static int usbtv_probe(struct usb_interf usbtv_audio_fail: /* we must not free at this point */ - usb_get_dev(usbtv->udev); + v4l2_device_get(&usbtv->v4l2_dev); + /* this will undo the v4l2_device_get() */ usbtv_video_free(usbtv); usbtv_video_fail:
