Dongliang Mu c02d2a91a8 media: pvrusb2: fix memory leak in pvr_probe
commit 945a9a8e448b65bec055d37eba58f711b39f66f0 upstream.

The error handling code in pvr2_hdw_create forgets to unregister the
v4l2 device. When pvr2_hdw_create returns back to pvr2_context_create,
it calls pvr2_context_destroy to destroy context, but mp->hdw is NULL,
which leads to that pvr2_hdw_destroy directly returns.

Fix this by adding v4l2_device_unregister to decrease the refcount of
usb interface.

Reported-by: syzbot+77b432d57c4791183ed4@syzkaller.appspotmail.com
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-05 10:31:27 +02:00
..
2022-03-18 05:58:35 +01:00
2022-05-13 11:02:19 +02:00
2022-06-03 11:17:49 -07:00
2022-03-23 14:51:35 -07:00
2022-03-12 16:59:52 +01:00