[media] em28xx: use v4l2_disable_ioctl() to disable ioctl VIDIOC_S_PARM

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>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 346c92aca7341b58269d9d1c9144417915a00dcd..2f7c5abad75ee727808888bc761da3ad14916f19 100644 (file)
--- 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);