diff options
Diffstat (limited to 'drivers/video/sm501fb.c')
| -rw-r--r-- | drivers/video/sm501fb.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index f49287c88abe..742b5c656d66 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; |