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[media] em28xx: disable tuner related ioctls for video and VBI devices without tuner 

Disable the ioctls VIDIOC_G_TUNER, VIDIOC_S_TUNER, VIDIOC_G_FREQUENCY and
VIDIOC_S_FREQUENCY for video and VBI devices without tuner.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Frank Schaefer 2013-02-07 13:39:10 -03:00 committed by Mauro Carvalho Chehab
parent 6e46daba56
commit 66df67b764
1 changed files with 14 additions and 0 deletions
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14
drivers/media/usb/em28xx/em28xx-video.c
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@ -1899,6 +1899,12 @@ int em28xx_register_analog_devices(struct em28xx *dev)
v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD);
v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD);
}
if (dev->tuner_type == TUNER_ABSENT) {
v4l2_disable_ioctl(dev->vdev, VIDIOC_G_TUNER);
v4l2_disable_ioctl(dev->vdev, VIDIOC_S_TUNER);
v4l2_disable_ioctl(dev->vdev, VIDIOC_G_FREQUENCY);
v4l2_disable_ioctl(dev->vdev, VIDIOC_S_FREQUENCY);
}
/* register v4l2 video video_device */
ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
@ -1917,6 +1923,14 @@ int em28xx_register_analog_devices(struct em28xx *dev)
dev->vbi_dev->queue = &dev->vb_vbiq;
dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock;
/* disable inapplicable ioctls */
if (dev->tuner_type == TUNER_ABSENT) {
v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_TUNER);
v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_TUNER);
v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_FREQUENCY);
v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_FREQUENCY);
}
/* register v4l2 vbi video_device */
ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->devno]);