From ba3e217a5761f912c4c887af28020ea861783ce2 Mon Sep 17 00:00:00 2001
From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Thu, 21 Sep 2017 10:44:13 +0530
Subject: [PATCH] gpio: brcmstb: 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@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-brcmstb.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
index dd0308cc8bb0b..27e92e57adae0 100644
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -485,6 +485,10 @@ static int brcmstb_gpio_probe(struct platform_device *pdev)
 		gc->of_node = np;
 		gc->owner = THIS_MODULE;
 		gc->label = devm_kasprintf(dev, GFP_KERNEL, "%pOF", dev->of_node);
+		if (!gc->label) {
+			err = -ENOMEM;
+			goto fail;
+		}
 		gc->base = gpio_base;
 		gc->of_gpio_n_cells = 2;
 		gc->of_xlate = brcmstb_gpio_of_xlate;