linux-kernel - [PATCH] mfd: Avoid writing uninitialized value to device

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Message-ID: <1323333920.10774.1.camel@phoenix>
Date:	Thu, 08 Dec 2011 16:45:20 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Haojian Zhuang <haojian.zhuang@...vell.com>,
	Samuel Ortiz <sameo@...ux.intel.com>
Subject: [PATCH] mfd: Avoid writing uninitialized value to device

Avoid writing uninitialized value to device by explicitly initialize
zero to 0.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/mfd/88pm860x-i2c.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/88pm860x-i2c.c b/drivers/mfd/88pm860x-i2c.c
index e017dc8..fcde8a3 100644
--- a/drivers/mfd/88pm860x-i2c.c
+++ b/drivers/mfd/88pm860x-i2c.c
@@ -151,7 +151,7 @@ int pm860x_page_reg_write(struct i2c_client *i2c, int reg,
 			  unsigned char data)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
-	unsigned char zero;
+	unsigned char zero = 0;
 	int ret;
 
 	mutex_lock(&chip->io_lock);
@@ -208,7 +208,7 @@ int pm860x_page_set_bits(struct i2c_client *i2c, int reg,
 			 unsigned char mask, unsigned char data)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
-	unsigned char zero;
+	unsigned char zero = 0;
 	unsigned char value;
 	int ret;
 
-- 
1.7.5.4



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