From: Axel Lin <axel.lin@gmail.com>
Date: Thu, 8 Dec 2011 13:05:26 +0000 (+0800)
Subject: jz4740-battery: Fix signedness bug
X-Git-Tag: upstream/snapshot3+hdmi~8366^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ef7906f3204280ccaf8cd7ace974b7c0a1393812;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

jz4740-battery: Fix signedness bug

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: Anton Vorontsov <cbouatmailru@gmail.com>
---

diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
index 6b77029..8dbc7bf 100644
--- a/drivers/power/jz4740-battery.c
+++ b/drivers/power/jz4740-battery.c
@@ -67,7 +67,7 @@ static irqreturn_t jz_battery_irq_handler(int irq, void *devid)
 
 static long jz_battery_read_voltage(struct jz_battery *battery)
 {
-	unsigned long t;
+	long t;
 	unsigned long val;
 	long voltage;