linux-kernel - [PATCH 2/2] gpio: tb10x: Handle return value of devm

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Date:   Wed, 20 Sep 2017 12:43:09 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     gregory.0xf0@...il.com, linus.walleij@...aro.org,
        computersforpeace@...il.com, f.fainelli@...il.com
Cc:     bcm-kernel-feedback-list@...adcom.com, linux-gpio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] gpio: tb10x: Handle return value of devm_kasprintf

devm_kasprintf() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/gpio/gpio-tb10x.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c
index 091ffaa..ac6f2a9 100644
--- a/drivers/gpio/gpio-tb10x.c
+++ b/drivers/gpio/gpio-tb10x.c
@@ -193,6 +193,9 @@ static int tb10x_gpio_probe(struct platform_device *pdev)
 
 	tb10x_gpio->gc.label		=
 		devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOF", pdev->dev.of_node);
+	if (!tb10x_gpio->gc.label)
+		return -ENOMEM;
+
 	tb10x_gpio->gc.parent		= &pdev->dev;
 	tb10x_gpio->gc.owner		= THIS_MODULE;
 	tb10x_gpio->gc.direction_input	= tb10x_gpio_direction_in;
-- 
1.9.1