[PATCH] fbcon: fix obvious bug in fbcon logo rotation code

This code fixes a tiny problem with the recent fbcon rotation changes:
fb_prepare_logo doesn't check the return value of fb_find_logo and that
causes a crash for my while booting.

Obvious & working & tested fix is here.
Signed-off-by: Jasper Spaans <jasper@vs19.net>
Acked-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/fbmem.c

@@ -453,12 +453,16 @@ int fb_prepare_logo(struct fb_info *info, int rotate)
 	/* Return if no suitable logo was found */
 	fb_logo.logo = fb_find_logo(depth);
 
+	if (!fb_logo.logo) {
+		return 0;
+	}
+	
 	if (rotate == FB_ROTATE_UR || rotate == FB_ROTATE_UD)
 		yres = info->var.yres;
 	else
 		yres = info->var.xres;
 
-	if (fb_logo.logo && fb_logo.logo->height > yres) {
+	if (fb_logo.logo->height > yres) {
 		fb_logo.logo = NULL;
 		return 0;
 	}