From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shailendra Verma Subject: [PATCH] Thermal - Fix possible NULL derefrence. Date: Mon, 30 Jan 2017 10:34:58 +0530 Message-ID: <1485752698-30248-1-git-send-email-shailendra.v@samsung.com> References: Return-path: Received: from mailout4.samsung.com ([203.254.224.34]:38809 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752221AbdA3FF2 (ORCPT ); Mon, 30 Jan 2017 00:05:28 -0500 Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Zhang Rui , Eduardo Valentin , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, p.shailesh@samsung.com, ashish.kalra@samsung.com, Shailendra Verma , Shailendra Verma of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma --- drivers/thermal/imx_thermal.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index 06912f0..fb648a4 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -489,6 +489,10 @@ static int imx_thermal_probe(struct platform_device *pdev) data->tempmon = map; data->socdata = of_device_get_match_data(&pdev->dev); + if (!data->socdata) { + dev_err(&pdev->dev, "no device match found\n"); + return -ENODEV; + } /* make sure the IRQ flag is clear before enabling irq on i.MX6SX */ if (data->socdata->version == TEMPMON_IMX6SX) { -- 1.7.9.5