1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h
index 157f595c3ed1..4552a4d6f192 100644
--- a/drivers/media/video/saa7134/saa7134.h
+++ b/drivers/media/video/saa7134/saa7134.h
@@ -641,6 +641,7 @@ struct saa7134_dev {
 /* saa7134-core.c                                              */
 
 extern struct list_head  saa7134_devlist;
+extern struct mutex saa7134_devlist_lock;
 extern int saa7134_no_overlay;
 
 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg);