shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 19:08:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

media: usb: Check az6007_read() return value

Browse Source 
[ Upstream commit fdaca63186 ]

If az6007_read() returns error, there is no sence to continue.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 3af2f4f15a ("[media] az6007: Change the az6007 read/write routine parameter")
Signed-off-by: Daniil Dulov <d.dulov@aladdin.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daniil Dulov
2023-03-14 10:04:49 -07:00
committed by Greg Kroah-Hartman
parent 32809afb60
commit 5f3f4aa673
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/media/usb/dvb-usb-v2/az6007.c
View File

@@ -202,7 +202,8 @@ static int az6007_rc_query(struct dvb_usb_device *d)
unsigned code; unsigned code;
enum rc_proto proto; enum rc_proto proto;
az6007_read(d, AZ6007_READ_IR, 0, 0, st->data, 10); if (az6007_read(d, AZ6007_READ_IR, 0, 0, st->data, 10) < 0)
return -EIO;
if (st->data[1] == 0x44) if (st->data[1] == 0x44)
return 0; return 0;