linux-kernel - [PATCH] misc: apds9802als: fix signedness bug

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Date:	Thu, 28 Oct 2010 15:13:58 +0400
From:	Vasiliy Kulikov <segooon@...il.com>
To:	kernel-janitors@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Hong Liu <hong.liu@...el.com>, Alan Cox <alan@...ux.intel.com>,
	Anantha Narayanan <anantha.narayanan@...el.com>,
	Jonathan Cameron <jic23@....ac.uk>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] misc: apds9802als: fix signedness bug

i2c_smbus_read_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/apds9802als.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/misc/apds9802als.c b/drivers/misc/apds9802als.c
index f9b91ba..0ed0935 100644
--- a/drivers/misc/apds9802als.c
+++ b/drivers/misc/apds9802als.c
@@ -123,7 +123,7 @@ static ssize_t als_sensing_range_store(struct device *dev,
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct als_data *data = i2c_get_clientdata(client);
-	unsigned int ret_val;
+	int ret_val;
 	unsigned long val;
 
 	if (strict_strtoul(buf, 10, &val))
-- 
1.7.0.4

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