From: Axel Lin <axel.lin@ingics.com>
Date: Mon, 2 Mar 2015 08:10:54 +0000 (+0800)
Subject: phy: hix5hd2-sata: Check return value of platform_get_resource
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1cbdfc48c3d4064e2515e4d837e714fd1aaa2d6e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

phy: hix5hd2-sata: Check return value of platform_get_resource

This prevent NULL pointer dereference if res is NULL.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---

diff --git a/drivers/phy/phy-hix5hd2-sata.c b/drivers/phy/phy-hix5hd2-sata.c
index 34915b4202f1..d6b22659cac1 100644
--- a/drivers/phy/phy-hix5hd2-sata.c
+++ b/drivers/phy/phy-hix5hd2-sata.c
@@ -147,6 +147,9 @@ static int hix5hd2_sata_phy_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
 	priv->base = devm_ioremap(dev, res->start, resource_size(res));
 	if (!priv->base)
 		return -ENOMEM;