linux-kernel - [PATCH] misc: isl29020: fix signedness bug

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Date:	Thu, 28 Oct 2010 15:14:03 +0400
From:	Vasiliy Kulikov <segooon@...il.com>
To:	kernel-janitors@...r.kernel.org
Cc:	Liu Hong <hong.liu@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kalhan Trisal <kalhan.trisal@...el.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Alan Cox <alan@...ux.intel.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] misc: isl29020: fix signedness bug

i2c_smbus_write_byte_data() may return negative error code.  This is not
seen to als_sensing_range_store() as the result is stored in unsigned int.
Made it signed.

Signed-off-by: Vasiliy Kulikov <segooon@...il.com>
---
 Compile tested.

 drivers/misc/isl29020.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/misc/isl29020.c b/drivers/misc/isl29020.c
index 34fe835..629d31e 100644
--- a/drivers/misc/isl29020.c
+++ b/drivers/misc/isl29020.c
@@ -87,7 +87,7 @@ static ssize_t als_sensing_range_store(struct device *dev,
 		struct device_attribute *attr, const  char *buf, size_t count)
 {
 	struct i2c_client *client = to_i2c_client(dev);
-	unsigned int ret_val;
+	int ret_val;
 	unsigned long val;
 
 	if (strict_strtoul(buf, 10, &val))
-- 
1.7.0.4

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