drivers/video/sis/sis_main.c: prevent reading uninitialized stack memory

[net-next-2.6.git] / drivers / video / sis / sis_main.c

diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 559bf1727a2b8f252a193d6fac276aed56124428..b52f8e4ef1fdbe3cd19c70d4fb282d15f5b99f85 100644 (file)
--- a/drivers/video/sis/sis_main.c
+++ b/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);