video: imxfb: Fix the maximum value for yres

Commit Message

Fabio Estevam Dec. 23, 2010, 5:17 p.m. UTC

None

Patch

diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 5c363d0..5d2d337 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -55,8 +55,10 @@ 
 
 #ifdef CONFIG_ARCH_MX1
 #define SIZE_YMAX(y)	((y) & 0x1ff)
+#define YMAX_MASK	0x1ff
 #else
 #define SIZE_YMAX(y)	((y) & 0x3ff)
+#define YMAX_MASK	0x3ff
 #endif
 
 #define LCDC_VPW	0x08
@@ -623,7 +625,7 @@  static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
 	if (var->right_margin > 255)
 		printk(KERN_ERR "%s: invalid right_margin %d\n",
 			info->fix.id, var->right_margin);
-	if (var->yres < 1 || var->yres > 511)
+	if (var->yres < 1 || var->yres > YMAX_MASK)
 		printk(KERN_ERR "%s: invalid yres %d\n",
 			info->fix.id, var->yres);
 	if (var->vsync_len > 100)