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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>
This commit is contained in:
Axel Lin 2011-12-08 21:05:26 +08:00 committed by Anton Vorontsov
parent 2530daa187
commit ef7906f320
1 changed files with 1 additions and 1 deletions
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2
drivers/power/jz4740-battery.c
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@ -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;