From: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Thu, 12 Nov 2015 07:49:59 +0000 (+0100)
Subject: mfd: qcom_rpm: Fix a possible NULL dereference
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cf1199f792da92dabfd5dfb2bd2211b5d191da45;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

mfd: qcom_rpm: Fix a possible NULL dereference

of_match_device could return NULL, and so cause a NULL pointer
dereference later.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---

diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c
index 207a3bd68559..1be47ad6441b 100644
--- a/drivers/mfd/qcom_rpm.c
+++ b/drivers/mfd/qcom_rpm.c
@@ -495,6 +495,8 @@ static int qcom_rpm_probe(struct platform_device *pdev)
 	}
 
 	match = of_match_device(qcom_rpm_of_match, &pdev->dev);
+	if (!match)
+		return -ENODEV;
 	rpm->data = match->data;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);