From cadacbdef368bb32b8da3e9b46fc2a4b2ba751c7 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@gmail.com>
Date: Thu, 8 Dec 2011 08:04:12 -0500
Subject: [PATCH] hwmon: (jz4740) fix signedness bug

commit 0b57d7602b68f7b2786b2f0e22da39cbd4139a95 upstream.

wait_for_completion_interruptible_timeout() may return negative value.
In this case, checking if (t > 0)  will return true if t is unsigned.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/hwmon/jz4740-hwmon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c
index fea292d43407..b65a4dae3f5e 100644
--- a/drivers/hwmon/jz4740-hwmon.c
+++ b/drivers/hwmon/jz4740-hwmon.c
@@ -59,7 +59,7 @@ static ssize_t jz4740_hwmon_read_adcin(struct device *dev,
 {
 	struct jz4740_hwmon *hwmon = dev_get_drvdata(dev);
 	struct completion *completion = &hwmon->read_completion;
-	unsigned long t;
+	long t;
 	unsigned long val;
 	int ret;
 
-- 
2.39.5