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[media] cx25821: s_input didn't check for invalid input

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The s_input implementation allowed input 1 even if that didn't exist.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-04-13 07:39:19 -03:00 committed by Mauro Carvalho Chehab
parent a8f35ce3d6
commit 6b1dce251f
1 changed files with 1 additions and 3 deletions
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4
drivers/media/pci/cx25821/cx25821-video.c
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@ -1163,10 +1163,8 @@ int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
return err; return err;
} }
if (i >= CX25821_NR_INPUT) { if (i >= CX25821_NR_INPUT || INPUT(i)->type == 0)
dprintk(1, "%s(): -EINVAL\n", __func__);
return -EINVAL; return -EINVAL;
}
mutex_lock(&dev->lock); mutex_lock(&dev->lock);
cx25821_video_mux(dev, i); cx25821_video_mux(dev, i);