summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorFrank Schaefer <fschaefer.oss@googlemail.com>2013-02-07 17:39:09 +0100
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-03-04 17:36:02 +0100
commit6e46daba562e44eee3009e4055a016a1c4bbb378 (patch)
tree9debe3f6f49993e6af3432a585794d3a1657c7d9
parentMerge tag 'v3.9-rc1' into staging/for_v3.9 (diff)
downloadlinux-6e46daba562e44eee3009e4055a016a1c4bbb378.tar.xz
linux-6e46daba562e44eee3009e4055a016a1c4bbb378.zip
[media] em28xx: use v4l2_disable_ioctl() to disable ioctls VIDIOC_QUERYSTD, VIDIOC_G/S_STD
Instead of checking the device type and returning -ENOTTY inside the ioctl functions, use v4l2_disable_ioctl() to disable the ioctls VIDIOC_QUERYSTD, VIDIOC_G_STD and VIDIOC_S_STD if the device is a camera. 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>
-rw-r--r--drivers/media/usb/em28xx/em28xx-video.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 32bd7de5dec1..d1e6ba62e06c 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -959,8 +959,6 @@ static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
struct em28xx *dev = fh->dev;
int rc;
- if (dev->board.is_webcam)
- return -ENOTTY;
rc = check_dev(dev);
if (rc < 0)
return rc;
@@ -976,8 +974,6 @@ static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm)
struct em28xx *dev = fh->dev;
int rc;
- if (dev->board.is_webcam)
- return -ENOTTY;
rc = check_dev(dev);
if (rc < 0)
return rc;
@@ -994,8 +990,6 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
struct v4l2_format f;
int rc;
- if (dev->board.is_webcam)
- return -ENOTTY;
if (*norm == dev->norm)
return 0;
rc = check_dev(dev);
@@ -1899,6 +1893,13 @@ int em28xx_register_analog_devices(struct em28xx *dev)
dev->vdev->queue = &dev->vb_vidq;
dev->vdev->queue->lock = &dev->vb_queue_lock;
+ /* disable inapplicable ioctls */
+ if (dev->board.is_webcam) {
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_QUERYSTD);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD);
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD);
+ }
+
/* register v4l2 video video_device */
ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
video_nr[dev->devno]);