From 7312c21dbd3f5026f087ba72c4e36754f1921762 Mon Sep 17 00:00:00 2001
From: Julien Grall <julien.grall@linaro.org>
Date: Wed, 22 May 2013 12:43:12 +0100
Subject: [PATCH] drivers/exynos4210: Return -ENOMEM when ioremap has failed

Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---
 xen/drivers/char/exynos4210-uart.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/drivers/char/exynos4210-uart.c b/xen/drivers/char/exynos4210-uart.c
index f151390352..f7971da73b 100644
--- a/xen/drivers/char/exynos4210-uart.c
+++ b/xen/drivers/char/exynos4210-uart.c
@@ -328,6 +328,7 @@ static int __init exynos4210_uart_init(struct dt_device_node *dev,
     if ( !uart->regs )
     {
         early_printk("exynos4210: Unable to map the UART memory\n");
+        return -ENOMEM;
     }
     res = dt_device_get_irq(dev, 0, &uart->irq);
     if ( res )
-- 
2.39.5