linux-kernel - [PATCH] mfd: qcom_rpm: fix a possible NULL dereference

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Date:	Thu, 12 Nov 2015 08:49:59 +0100
From:	LABBE Corentin <clabbe.montjoie@...il.com>
To:	lee.jones@...aro.org
Cc:	LABBE Corentin <clabbe.montjoie@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] 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@...il.com>
---
 drivers/mfd/qcom_rpm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/qcom_rpm.c b/drivers/mfd/qcom_rpm.c
index 207a3bd..1be47ad 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);
-- 
2.4.10

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