[PATCH 3.16 071/410] power: supply: ab8500_charger: Fix an error handling path

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3.16.57-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

commit bf59fddde1c3eab89eb8dca8f3d3dc097887d2bb upstream.

'ret' is know to be 0 at this point, because it has not been updated by the
the previous call to 'abx500_mask_and_set_register_interruptible()'.

Fix it by updating 'ret' before checking if an error occurred.

Fixes: 84edbeeab67c ("ab8500-charger: AB8500 charger driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/power/ab8500_charger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -3224,7 +3224,7 @@ static int ab8500_charger_init_hw_regist
 	}
 
 	/* Enable backup battery charging */
-	abx500_mask_and_set_register_interruptible(di->dev,
+	ret = abx500_mask_and_set_register_interruptible(di->dev,
 		AB8500_RTC, AB8500_RTC_CTRL_REG,
 		RTC_BUP_CH_ENA, RTC_BUP_CH_ENA);
 	if (ret < 0)




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