diff options
| author | David Ellingsworth <david@identd.dyndns.org> | 2009-09-23 22:45:31 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 21:40:09 +0100 |
| commit | ceb99e1b5a093ae8f439fc55aac28d007145c8ec (patch) | |
| tree | 23e2089e0f82b1f4d7560210d50237eafd0c1ce6 /drivers/media/radio | |
| parent | V4L/DVB (13063): radio-mr800: remove unnecessary local variable (diff) | |
| download | linux-ceb99e1b5a093ae8f439fc55aac28d007145c8ec.tar.xz linux-ceb99e1b5a093ae8f439fc55aac28d007145c8ec.zip | |
V4L/DVB (13064): radio-mr800: simplify access to amradio_device
Simplify access to amradio_device.
Signed-off-by: David Ellingsworth <david@identd.dyndns.org>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio')
| -rw-r--r-- | drivers/media/radio/radio-mr800.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c index 24c55a5a6cac..5401952004bc 100644 --- a/drivers/media/radio/radio-mr800.c +++ b/drivers/media/radio/radio-mr800.c @@ -141,6 +141,8 @@ struct amradio_device { int muted; }; +#define vdev_to_amradio(r) container_of(r, struct amradio_device, videodev) + /* USB Device ID List */ static struct usb_device_id usb_amradio_device_table[] = { {USB_DEVICE_AND_INTERFACE_INFO(USB_AMRADIO_VENDOR, USB_AMRADIO_PRODUCT, @@ -280,7 +282,7 @@ static void usb_amradio_disconnect(struct usb_interface *intf) static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *v) { - struct amradio_device *radio = video_drvdata(file); + struct amradio_device *radio = file->private_data; strlcpy(v->driver, "radio-mr800", sizeof(v->driver)); strlcpy(v->card, "AverMedia MR 800 USB FM Radio", sizeof(v->card)); @@ -294,7 +296,7 @@ static int vidioc_querycap(struct file *file, void *priv, static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = file->private_data; int retval; mutex_lock(&radio->lock); @@ -345,7 +347,7 @@ unlock: static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = file->private_data; int retval; mutex_lock(&radio->lock); @@ -388,7 +390,7 @@ unlock: static int vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = file->private_data; int retval; mutex_lock(&radio->lock); @@ -415,7 +417,7 @@ unlock: static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = file->private_data; int retval = 0; mutex_lock(&radio->lock); @@ -450,7 +452,7 @@ static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = file->private_data; int retval = -EINVAL; mutex_lock(&radio->lock); @@ -477,7 +479,7 @@ unlock: static int vidioc_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = file->private_data; int retval = -EINVAL; mutex_lock(&radio->lock); @@ -550,7 +552,7 @@ static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) /* open device - amradio_start() and amradio_setfreq() */ static int usb_amradio_open(struct file *file) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = vdev_to_amradio(video_devdata(file)); int retval = 0; mutex_lock(&radio->lock); @@ -560,6 +562,7 @@ static int usb_amradio_open(struct file *file) goto unlock; } + file->private_data = radio; radio->users = 1; radio->muted = 1; @@ -589,7 +592,7 @@ unlock: /*close device */ static int usb_amradio_close(struct file *file) { - struct amradio_device *radio = video_get_drvdata(video_devdata(file)); + struct amradio_device *radio = file->private_data; int retval = 0; mutex_lock(&radio->lock); @@ -674,7 +677,7 @@ static const struct v4l2_ioctl_ops usb_amradio_ioctl_ops = { static void usb_amradio_video_device_release(struct video_device *videodev) { - struct amradio_device *radio = video_get_drvdata(videodev); + struct amradio_device *radio = vdev_to_amradio(videodev); v4l2_device_unregister(&radio->v4l2_dev); |