[PATCH] ioremap balanced with iounmap for drivers/video/retz3fb

ioremap must be balanced by an iounmap and failing to do so can result in a
memory leak.
Signed-off-by: Amol Lad <amol@verismonetworks.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/retz3fb.c

@@ -1423,8 +1423,10 @@ int __init retz3fb_init(void)
 
 		do_install_cmap(0, fb_info);
 
-		if (register_framebuffer(fb_info) < 0)
+		if (register_framebuffer(fb_info) < 0) {
+			iounmap(zinfo->base);
 			return -EINVAL;
+		}
 
 		printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of "
 		       "video memory\n", fb_info->node,