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path: root/drivers/video/fbdev/intelfb/intelfbdrv.c
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-rw-r--r--drivers/video/fbdev/intelfb/intelfbdrv.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/fbdev/intelfb/intelfbdrv.c b/drivers/video/fbdev/intelfb/intelfbdrv.c
index d7463a2a5..c97c0c851 100644
--- a/drivers/video/fbdev/intelfb/intelfbdrv.c
+++ b/drivers/video/fbdev/intelfb/intelfbdrv.c
@@ -1215,6 +1215,9 @@ static int intelfb_check_var(struct fb_var_screeninfo *var,
dinfo = GET_DINFO(info);
+ if (!var->pixclock)
+ return -EINVAL;
+
/* update the pitch */
if (intelfbhw_validate_mode(dinfo, var) != 0)
return -EINVAL;