diff --git a/[refs] b/[refs]
index 5b59da245068..8e3c74b76012 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cb1dcc0ff4b57873210100fc9d70defa81af43d4
+refs/heads/master: fd02db9de73faebc51240619c7c7f99bee9f65c7
diff --git a/trunk/drivers/video/sis/sis_main.c b/trunk/drivers/video/sis/sis_main.c
index 559bf1727a2b..b52f8e4ef1fd 100644
--- a/trunk/drivers/video/sis/sis_main.c
+++ b/trunk/drivers/video/sis/sis_main.c
@@ -1701,6 +1701,9 @@ static int	sisfb_ioctl(struct fb_info *info, unsigned int cmd,
 		break;
 
 	   case FBIOGET_VBLANK:
+
+		memset(&sisvbblank, 0, sizeof(struct fb_vblank));
+
 		sisvbblank.count = 0;
 		sisvbblank.flags = sisfb_setupvbblankflags(ivideo, &sisvbblank.vcount, &sisvbblank.hcount);