linux-kernel - [PATCH 2/2] power_supply: lp8788-charger: Fix leaked power supply on probe fail

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Message-id: <1422542379-8202-2-git-send-email-k.kozlowski@samsung.com>
Date:	Thu, 29 Jan 2015 15:39:39 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Milo Kim <milo.kim@...com>, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	stable@...r.kernel.org
Subject: [PATCH 2/2] power_supply: lp8788-charger: Fix leaked power supply on
 probe fail

Driver forgot to unregister charger power supply if registering of
battery supply failed in probe(). In such case the memory associated
with power supply leaked.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Fixes: 98a276649358 ("power_supply: Add new lp8788 charger driver")
Cc: <stable@...r.kernel.org>
---
 drivers/power/lp8788-charger.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/power/lp8788-charger.c b/drivers/power/lp8788-charger.c
index 21fc233c7d61..176dab2e4c16 100644
--- a/drivers/power/lp8788-charger.c
+++ b/drivers/power/lp8788-charger.c
@@ -417,8 +417,10 @@ static int lp8788_psy_register(struct platform_device *pdev,
 	pchg->battery.num_properties = ARRAY_SIZE(lp8788_battery_prop);
 	pchg->battery.get_property = lp8788_battery_get_property;
 
-	if (power_supply_register(&pdev->dev, &pchg->battery))
+	if (power_supply_register(&pdev->dev, &pchg->battery)) {
+		power_supply_unregister(&pchg->charger);
 		return -EPERM;
+	}
 
 	return 0;
 }
-- 
1.9.1

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