V4L/DVB (5591): Saa7146: proper prototype for saa7146_video_do_ioctl()

This patch adds a proper prototype for saa7146_video_do_ioctl() in
include/media/saa7146_vv.h.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h
index 50e33b0..cce20ed 100644
--- a/include/media/saa7146_vv.h
+++ b/include/media/saa7146_vv.h
@@ -216,6 +216,8 @@
 extern struct saa7146_use_ops saa7146_video_uops;
 int saa7146_start_preview(struct saa7146_fh *fh);
 int saa7146_stop_preview(struct saa7146_fh *fh);
+int saa7146_video_do_ioctl(struct inode *inode, struct file *file,
+			   unsigned int cmd, void *arg);
 
 /* from saa7146_vbi.c */
 extern struct saa7146_use_ops saa7146_vbi_uops;