From: Frank Schaefer Date: Thu, 7 Feb 2013 16:39:11 +0000 (-0300) Subject: [media] em28xx: use v4l2_disable_ioctl() to disable ioctls VIDIOC_G_AUDIO and VIDIOC_... X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c2dcef835e40f5a63b14f6eeada8b08b37da263f;p=openwrt%2Fstaging%2Fblogic.git [media] em28xx: use v4l2_disable_ioctl() to disable ioctls VIDIOC_G_AUDIO and VIDIOC_S_AUDIO Instead of checking the device type and returning -EINVAL inside the ioctl functions, use v4l2_disable_ioctl() to disable the ioctls VIDIOC_G_AUDIO and VIDIOC_S_AUDIO if the device doesn't support audio. Signed-off-by: Frank Schäfer Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index a2216334d6f5..346c92aca734 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -1130,9 +1130,6 @@ static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; - if (!dev->audio_mode.has_audio) - return -EINVAL; - switch (a->index) { case EM28XX_AMUX_VIDEO: strcpy(a->name, "Television"); @@ -1173,10 +1170,6 @@ static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio struct em28xx_fh *fh = priv; struct em28xx *dev = fh->dev; - - if (!dev->audio_mode.has_audio) - return -EINVAL; - if (a->index >= MAX_EM28XX_INPUT) return -EINVAL; if (0 == INPUT(a->index)->type) @@ -1905,6 +1898,10 @@ int em28xx_register_analog_devices(struct em28xx *dev) v4l2_disable_ioctl(dev->vdev, VIDIOC_G_FREQUENCY); v4l2_disable_ioctl(dev->vdev, VIDIOC_S_FREQUENCY); } + if (!dev->audio_mode.has_audio) { + v4l2_disable_ioctl(dev->vdev, VIDIOC_G_AUDIO); + v4l2_disable_ioctl(dev->vdev, VIDIOC_S_AUDIO); + } /* register v4l2 video video_device */ ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, @@ -1930,6 +1927,10 @@ int em28xx_register_analog_devices(struct em28xx *dev) v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_FREQUENCY); v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_FREQUENCY); } + if (!dev->audio_mode.has_audio) { + v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_AUDIO); + v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_AUDIO); + } /* register v4l2 vbi video_device */ ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,