diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2015-11-11 01:23:53 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-11-17 19:38:18 +0300 |
| commit | 0dac45f0e5a5f55cf454e9e2ca86221539e63357 (patch) | |
| tree | 7c407b3decbf99c6eb3b6e9996e390e7d5e7b3e2 /drivers/media/pci/ttpci | |
| parent | 75d63a40a5c01cf6ba9572cb124488a0e3baa6c1 (diff) | |
| download | linux-0dac45f0e5a5f55cf454e9e2ca86221539e63357.tar.xz | |
[media] av7110: potential divide by zero
"len" comes from dvb_video_ioctl() and there is a possibility that it is
zero. We do a divide by len later in the function so that's not ok.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/pci/ttpci')
| -rw-r--r-- | drivers/media/pci/ttpci/av7110_av.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/pci/ttpci/av7110_av.c b/drivers/media/pci/ttpci/av7110_av.c index ccb3b2c89ef8..1cf906047353 100644 --- a/drivers/media/pci/ttpci/av7110_av.c +++ b/drivers/media/pci/ttpci/av7110_av.c @@ -1045,6 +1045,9 @@ static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len dprintk(2, "av7110:%p, \n", av7110); + if (len == 0) + return 0; + if (!(av7110->playing & RP_VIDEO)) { if (av7110_av_start_play(av7110, RP_VIDEO) < 0) return -EBUSY; |