da9052-battery: Don't free IRQ that wasn't requested

We should decrement "i" before doing the free_irq().  If we call this
because request_threaded_irq() failed then we don't want to free the
thing which failed.  Or in the case where we get here because
power_supply_register() failed then the original codes does a read past
the end of the array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/power/da9052-battery.c b/drivers/power/da9052-battery.c
index 20b86ed946e3..d9d034d7496f 100644
--- a/drivers/power/da9052-battery.c
+++ b/drivers/power/da9052-battery.c
@@ -623,7 +623,7 @@ static s32 __devinit da9052_bat_probe(struct platform_device *pdev)
         return 0;
 
 err:
-        for (; i >= 0; i--) {
+        while (--i >= 0) {
                 irq = platform_get_irq_byname(pdev, da9052_bat_irqs[i]);
                 free_irq(bat->da9052->irq_base + irq, bat);
         }