V4L/DVB (8788): v4l: replace video_get_drvdata(video_devdata(filp)) with video_drvdata(filp)

Use the new video_drvdata(filp) function where it is safe to do so.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c
index 5dd5e34..d784895 100644
--- a/drivers/media/radio/radio-aztech.c
+++ b/drivers/media/radio/radio-aztech.c
@@ -196,8 +196,7 @@
 static int vidioc_g_tuner (struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	struct video_device *dev = video_devdata(file);
-	struct az_device *az = video_get_drvdata(dev);
+	struct az_device *az = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
@@ -265,8 +264,7 @@
 static int vidioc_s_frequency (struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	struct video_device *dev = video_devdata(file);
-	struct az_device *az = video_get_drvdata(dev);
+	struct az_device *az = video_drvdata(file);
 
 	az->curfreq = f->frequency;
 	az_setfreq(az, az->curfreq);
@@ -276,8 +274,7 @@
 static int vidioc_g_frequency (struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	struct video_device *dev = video_devdata(file);
-	struct az_device *az = video_get_drvdata(dev);
+	struct az_device *az = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = az->curfreq;
@@ -303,8 +300,7 @@
 static int vidioc_g_ctrl (struct file *file, void *priv,
 			    struct v4l2_control *ctrl)
 {
-	struct video_device *dev = video_devdata(file);
-	struct az_device *az = video_get_drvdata(dev);
+	struct az_device *az = video_drvdata(file);
 
 	switch (ctrl->id) {
 		case V4L2_CID_AUDIO_MUTE:
@@ -323,8 +319,7 @@
 static int vidioc_s_ctrl (struct file *file, void *priv,
 			    struct v4l2_control *ctrl)
 {
-	struct video_device *dev = video_devdata(file);
-	struct az_device *az = video_get_drvdata(dev);
+	struct az_device *az = video_drvdata(file);
 
 	switch (ctrl->id) {
 		case V4L2_CID_AUDIO_MUTE: