1 files changed, 4 insertions, 2 deletions

diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 8266d5ade2ff..c7c40f1d2624 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -62,6 +62,8 @@ 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 *);
@@ -126,8 +128,8 @@ struct video_device
         struct mutex *lock;
 };
 
-#define media_entity_to_video_device(entity) \
-        container_of(entity, struct video_device, entity)
+#define media_entity_to_video_device(__e) \
+        container_of(__e, struct video_device, entity)
 /* dev to video-device */
 #define to_video_device(cd) container_of(cd, struct video_device, dev)