linux-kernel - [PATCH 1/6] regulator: anatop: check return value of of_get_regulator_init

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Date:   Wed, 12 Apr 2017 09:58:42 +0800
From:   Dong Aisheng <aisheng.dong@....com>
To:     <linux-kernel@...r.kernel.org>
CC:     <shawnguo@...nel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <aisheng.dong@....com>, <kernel@...gutronix.de>,
        <lgirdwood@...il.com>, <broonie@...nel.org>, <yibin.gong@....com>
Subject: [PATCH 1/6] regulator: anatop: check return value of of_get_regulator_init_data

Should check the return value of of_get_regulator_init_data before
using it.

Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: Sascha Hauer <kernel@...gutronix.de>
Cc: Robin Gong <yibin.gong@....com>
Signed-off-by: Dong Aisheng <aisheng.dong@....com>
---
 drivers/regulator/anatop-regulator.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index b041f27..46b9c2c 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -200,6 +200,9 @@ static int anatop_regulator_probe(struct platform_device *pdev)
 	rdesc->owner = THIS_MODULE;
 
 	initdata = of_get_regulator_init_data(dev, np, rdesc);
+	if (!initdata)
+		return -ENOMEM;
+
 	initdata->supply_regulator = "vin";
 	sreg->initdata = initdata;
 
-- 
2.7.4