V4L/DVB: v4l2-dev: remove get_unmapped_area

The get_unmapped_area file operation is unused. Remove.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/v4l2-dev.c

@@ -236,23 +236,6 @@ static long v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	return ret;
 }
 
-#ifdef CONFIG_MMU
-#define v4l2_get_unmapped_area NULL
-#else
-static unsigned long v4l2_get_unmapped_area(struct file *filp,
-		unsigned long addr, unsigned long len, unsigned long pgoff,
-		unsigned long flags)
-{
-	struct video_device *vdev = video_devdata(filp);
-
-	if (!vdev->fops->get_unmapped_area)
-		return -ENOSYS;
-	if (!video_is_registered(vdev))
-		return -ENODEV;
-	return vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
-}
-#endif
-
 static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm)
 {
 	struct video_device *vdev = video_devdata(filp);
@@ -309,7 +292,6 @@ static const struct file_operations v4l2_fops = {
 	.read = v4l2_read,
 	.write = v4l2_write,
 	.open = v4l2_open,
-	.get_unmapped_area = v4l2_get_unmapped_area,
 	.mmap = v4l2_mmap,
 	.unlocked_ioctl = v4l2_ioctl,
 #ifdef CONFIG_COMPAT

include/media/v4l2-dev.h

@@ -41,8 +41,6 @@ struct v4l2_file_operations {
 	unsigned int (*poll) (struct file *, struct poll_table_struct *);
 	long (*ioctl) (struct file *, unsigned int, unsigned long);
 	long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
-	unsigned long (*get_unmapped_area) (struct file *, unsigned long,
-				unsigned long, unsigned long, unsigned long);
 	int (*mmap) (struct file *, struct vm_area_struct *);
 	int (*open) (struct file *);
 	int (*release) (struct file *);