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V4L/DVB: video/sn9c102: improve error handling

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Return an error if the controller is not found.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dan Carpenter 2010-03-28 08:50:05 -03:00 committed by Mauro Carvalho Chehab
parent 67e13e7709
commit 124371e33c
1 changed files with 4 additions and 2 deletions
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6
drivers/media/video/sn9c102/sn9c102_core.c
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@ -2295,7 +2295,7 @@ sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg)
if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
return -EFAULT;
for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) {
if (ctrl.id == s->qctrl[i].id) {
if (s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED)
return -EINVAL;
@ -2305,7 +2305,9 @@ sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg)
ctrl.value -= ctrl.value % s->qctrl[i].step;
break;
}
}
if (i == ARRAY_SIZE(s->qctrl))
return -EINVAL;
if ((err = s->set_ctrl(cam, &ctrl)))
return err;