diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 0a4dbdc..9653e77 100644
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -636,8 +636,9 @@ done:
 			if (refresh_specified && db[i].refresh == refresh) {
 				return 1;
 			} else {
-				if (abs(db[i].refresh - refresh) < diff) {
-					diff = abs(db[i].refresh - refresh);
+				tdiff = (u32) abs(db[i].refresh - refresh);
+				if (tdiff < diff) {
+					diff = tdiff;
 					best = i;
 				}
 			}
@@ -654,8 +655,8 @@ done:
 	for (i = 0; i < dbsize; i++) {
 		DPRINTK("Trying %ix%i\n", db[i].xres, db[i].yres);
 		if (!fb_try_mode(var, info, &db[i], bpp)) {
-			tdiff = abs(db[i].xres - xres) +
-				abs(db[i].yres - yres);
+			tdiff = (u32) (abs(db[i].xres - xres) +
+				abs(db[i].yres - yres));
 
 			/*
 			 * Penalize modes with resolutions smaller
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 7b8839e..4ebc300 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -317,7 +317,8 @@ static void uvesafb_setup_var(struct fb_var_screeninfo *var,
 static int uvesafb_vbe_find_mode(struct uvesafb_par *par,
 		int xres, int yres, int depth, unsigned char flags)
 {
-	int i, match = -1, h = 0, d = 0x7fffffff;
+	int i, match = -1;
+	unsigned int h = 0, d = UINT_MAX;
 
 	for (i = 0; i < par->vbe_modes_cnt; i++) {
 		h = abs(par->vbe_modes[i].x_res - xres) +