omapfb: remove wrong scale call for gfx_plane

The gfx_plane doesn't support scaling.
Signed-off-by: Arun C <arunedarath@mistralsolutions.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/video/omap/dispc.c

@@ -519,8 +519,7 @@ static int omap_dispc_set_scale(int plane,
 	if ((unsigned)plane > OMAPFB_PLANE_NUM)
 		return -ENODEV;
 
-	if (plane == OMAPFB_PLANE_GFX &&
-	    (out_width != orig_width || out_height != orig_height))
+	if (out_width != orig_width || out_height != orig_height)
 		return -EINVAL;
 
 	enable_lcd_clocks(1);

drivers/video/omap/omapfb_main.c

@@ -223,13 +223,15 @@ static int ctrl_change_mode(struct fb_info *fbi)
 		if((r = fbdev->ctrl->set_rotate(var->rotate)) < 0)
 			return r;
 
-	if (fbdev->ctrl->set_scale != NULL)
+	if ((fbdev->ctrl->set_scale != NULL) && (plane->idx > 0))
 		r = fbdev->ctrl->set_scale(plane->idx,
 				   var->xres, var->yres,
 				   plane->info.out_width,
 				   plane->info.out_height);
+	if (r < 0)
+		return r;
 
-	return r;
+	return 0;
 }
 
 /*