diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 0a4dbdc..f61ddb7 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 = abs((signed)(db[i].refresh - refresh));
+				if (tdiff < diff) {
+					diff = tdiff;
 					best = i;
 				}
 			}
@@ -654,9 +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 = abs((signed)(db[i].xres - xres)) +
+				abs((signed)(db[i].yres - yres));
 			/*
 			 * Penalize modes with resolutions smaller
 			 * than requested.
@@ -851,13 +851,13 @@ const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
 		modelist = list_entry(pos, struct fb_modelist, list);
 		cmode = &modelist->mode;
 
-		d = abs(cmode->xres - mode->xres) +
-			abs(cmode->yres - mode->yres);
+		d = abs((signed)(cmode->xres - mode->xres)) +
+			abs((signed)(cmode->yres - mode->yres));
 		if (diff > d) {
 			diff = d;
 			best = cmode;
 		} else if (diff == d) {
-			d = abs(cmode->refresh - mode->refresh);
+			d = abs((signed)(cmode->refresh - mode->refresh));
 			if (diff_refresh > d) {
 				diff_refresh = d;
 				best = cmode;
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 7b8839e..8ed1012 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -317,12 +317,13 @@ 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) +
-		    abs(par->vbe_modes[i].y_res - yres) +
-		    abs(depth - par->vbe_modes[i].depth);
+		h = abs((signed)(par->vbe_modes[i].x_res - xres)) +
+		    abs((signed)(par->vbe_modes[i].y_res - yres)) +
+		    abs((signed)(depth - par->vbe_modes[i].depth));
 
 		/*
 		 * We have an exact match in terms of resolution
@@ -1375,7 +1376,7 @@ static int uvesafb_check_var(struct fb_var_screeninfo *var,
 	 * which is theoretically incorrect, but which we'll try to handle
 	 * here.
 	 */
-	if (depth == 0 || abs(depth - var->bits_per_pixel) >= 8)
+	if (depth == 0 || abs((signed)(depth - var->bits_per_pixel)) >= 8)
 		depth = var->bits_per_pixel;
 
 	match = uvesafb_vbe_find_mode(par, var->xres, var->yres, depth,