diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-12-07 23:48:09 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-09 10:19:00 +0100 |
| commit | cdcf9c99212e4d8b89101f2492963db5b3d0463e (patch) | |
| tree | 78cf00ca1df88e67a496ed40595003e4bae68656 /kernel/cred.c | |
| parent | ffbcee5097adf4f5029f0c44e45bce96148180c7 (diff) | |
media: cec: avoid decrementing transmit_queue_sz if it is 0
commit 95c29d46ab2a517e4c26d0a07300edca6768db17 upstream.
WARN if transmit_queue_sz is 0 but do not decrement it.
The CEC adapter will become unresponsive if it goes below
0 since then it thinks there are 4 billion messages in the
queue.
Obviously this should not happen, but a driver bug could
cause this.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org> # for v4.12 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/cred.c')
0 files changed, 0 insertions, 0 deletions