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V4L/DVB: s2255drv: return if vdev not found 

The original code didn't handle the case where vdev was not found so I
added a check for that.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: linux-dev@sensoray.com
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dan Carpenter 2010-05-05 03:01:30 -03:00 committed by Mauro Carvalho Chehab
parent b9245d80c3
commit aab9796f55
1 changed files with 5 additions and 1 deletions
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6
drivers/media/video/s2255drv.c
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@ -1716,11 +1716,15 @@ static int s2255_open(struct file *file)
dprintk(1, "s2255: open called (dev=%s)\n", dprintk(1, "s2255: open called (dev=%s)\n",
video_device_node_name(vdev)); video_device_node_name(vdev));
for (i = 0; i < MAX_CHANNELS; i++) for (i = 0; i < MAX_CHANNELS; i++) {
if (&dev->vdev[i] == vdev) { if (&dev->vdev[i] == vdev) {
cur_channel = i; cur_channel = i;
break; break;
} }
}
if (i == MAX_CHANNELS)
return -ENODEV;
/* /*
* open lock necessary to prevent multiple instances * open lock necessary to prevent multiple instances
* of v4l-conf (or other programs) from simultaneously * of v4l-conf (or other programs) from simultaneously