From ed6e965824303255cacc1c1a195d3684caa26bce Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 31 Jul 2014 10:38:08 +0200
Subject: resource: Let dev_request_mem_region return an error pointer

For all users fix or add the error check.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/input/imx_keypad.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/input')

diff --git a/drivers/input/imx_keypad.c b/drivers/input/imx_keypad.c
index afe93c3127..c67deb8d49 100644
--- a/drivers/input/imx_keypad.c
+++ b/drivers/input/imx_keypad.c
@@ -47,6 +47,7 @@
 #include <kfifo.h>
 #include <malloc.h>
 #include <matrix_keypad.h>
+#include <linux/err.h>
 
 /*
  * Keypad Controller registers (halfword)
@@ -401,6 +402,8 @@ static int __init imx_keypad_probe(struct device_d *dev)
 
 	keypad->dev = dev;
 	keypad->mmio_base = dev_request_mem_region(dev, 0);
+	if (IS_ERR(keypad->mmio_base))
+		return PTR_ERR(keypad->mmio_base);
 
 	if(!keypad->fifo_size)
 		keypad->fifo_size = 50;
-- 
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