[REVIEW PATCH 04/12] em28xx: use v4l2_disable_ioctl() to disable ioctl VIDIOC_S_PARM

Frank Schäfer
2013-01-25T17:26:49Z

Instead of checking the device type and returning -ENOTTY inside the ioctl
function, use v4l2_disable_ioctl() to disable the ioctl VIDIOC_S_PARM if the
device is not a camera.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
---
drivers/media/usb/em28xx/em28xx-video.c | 5 ++---
1 Datei geändert, 2 Zeilen hinzugefügt(+), 3 Zeilen entfernt(-)

diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 378d8a1..c76714d 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -1044,9 +1044,6 @@ static int vidioc_s_parm(struct file *file, void *priv,
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;

- if (!dev->board.is_webcam)
- return -ENOTTY;
-
if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;

@@ -1891,6 +1888,8 @@ int em28xx_register_analog_devices(struct em28xx *dev)
v4l2_disable_ioctl(dev->vdev, VIDIOC_QUERYSTD);
v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD);
v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD);
+ } else {
+ v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM);
}
if (dev->tuner_type == TUNER_ABSENT) {
v4l2_disable_ioctl(dev->vdev, VIDIOC_G_TUNER);
--
1.7.10.4