linux-kernel - [PATCH 3/4] pm2301-charger: Check return value of regulator

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Message-Id: <1378120226-24805-3-git-send-email-sachin.kamat@linaro.org>
Date:	Mon,  2 Sep 2013 16:40:24 +0530
From:	Sachin Kamat <sachin.kamat@...aro.org>
To:	linux-kernel@...r.kernel.org
Cc:	anton@...msg.org, sachin.kamat@...aro.org,
	Lee Jones <lee.jones@...aro.org>
Subject: [PATCH 3/4] pm2301-charger: Check return value of regulator_enable

Check the return value of regulator_enable to silence the following
warning:
drivers/power/pm2301_charger.c:725:20: warning:
ignoring return value of ‘regulator_enable’, declared with
attribute warn_unused_result [-Wunused-result]

Signed-off-by: Sachin Kamat <sachin.kamat@...aro.org>
Cc: Lee Jones <lee.jones@...aro.org>
---
 drivers/power/pm2301_charger.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index ffa10ed..ab87d1a 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -722,7 +722,12 @@ static int pm2xxx_charger_ac_en(struct ux500_charger *charger,
 
 		dev_dbg(pm2->dev, "Enable AC: %dmV %dmA\n", vset, iset);
 		if (!pm2->vddadc_en_ac) {
-			regulator_enable(pm2->regu);
+			ret = regulator_enable(pm2->regu);
+			if (ret) {
+				dev_err(pm2->dev,
+					"Failed to enable regulator\n");
+				goto error_occured;
+			}
 			pm2->vddadc_en_ac = true;
 		}
 
-- 
1.7.9.5

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