staging/android: make sync_file_fdget() static

There is no plan in the near future to use this function outside of this
file so keep it as static.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/sync.c

@@ -212,7 +212,7 @@ EXPORT_SYMBOL(sync_file_create);
  * Ensures @fd references a valid sync_file, increments the refcount of the
  * backing file. Returns the sync_file or NULL in case of error.
  */
-struct sync_file *sync_file_fdget(int fd)
+static struct sync_file *sync_file_fdget(int fd)
 {
 	struct file *file = fget(fd);
 
@@ -228,7 +228,6 @@ struct sync_file *sync_file_fdget(int fd)
 	fput(file);
 	return NULL;
 }
-EXPORT_SYMBOL(sync_file_fdget);
 
 static void sync_file_add_pt(struct sync_file *sync_file, int *i,
 			     struct fence *fence)

drivers/staging/android/sync.h

@@ -168,7 +168,6 @@ void sync_timeline_signal(struct sync_timeline *obj);
 struct fence *sync_pt_create(struct sync_timeline *parent, int size);
 
 struct sync_file *sync_file_create(const char *name, struct fence *fence);
-struct sync_file *sync_file_fdget(int fd);
 
 #ifdef CONFIG_DEBUG_FS