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-rw-r--r--drivers/video/sm501fb.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index f49287c88ab..742b5c656d6 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -237,12 +237,14 @@ static int sm501fb_check_var(struct fb_var_screeninfo *var,
/* check we can fit these values into the registers */
- if (var->hsync_len > 255 || var->vsync_len > 255)
+ if (var->hsync_len > 255 || var->vsync_len > 63)
return -EINVAL;
- if ((var->xres + var->right_margin) >= 4096)
+ /* hdisplay end and hsync start */
+ if ((var->xres + var->right_margin) > 4096)
return -EINVAL;
+ /* vdisplay end and vsync start */
if ((var->yres + var->lower_margin) > 2048)
return -EINVAL;