From: roel kluin <roel.kluin@gmail.com>
Date: Tue, 6 Jan 2009 22:42:31 +0000 (-0800)
Subject: gbefb: unsigned var->pixclock cannot be less than 0
X-Git-Tag: v2.6.29-rc1~270
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=6405141fb3d06ec4a50d054a113e3317cad054f9;p=linux-2.6-omap-h63xx.git

gbefb: unsigned var->pixclock cannot be less than 0

unsigned var->pixclock cannot be less than 0

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index f89c3cce1e0..fe5b519860b 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -912,6 +912,7 @@ static int gbefb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 {
 	unsigned int line_length;
 	struct gbe_timing_info timing;
+	int ret;
 
 	/* Limit bpp to 8, 16, and 32 */
 	if (var->bits_per_pixel <= 8)
@@ -930,8 +931,10 @@ static int gbefb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 
 	var->grayscale = 0;	/* No grayscale for now */
 
-	if ((var->pixclock = compute_gbe_timing(var, &timing)) < 0)
-		return(-EINVAL);
+	ret = compute_gbe_timing(var, &timing);
+	var->pixclock = ret;
+	if (ret < 0)
+		return -EINVAL;
 
 	/* Adjust virtual resolution, if necessary */
 	if (var->xres > var->xres_virtual || (!ywrap && !ypan))