From: Shailendra Verma <shailendra.v@samsung.com>
Date: Mon, 30 Jan 2017 05:04:58 +0000 (+0530)
Subject: thermal: imx: Fix possible NULL dereference.
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8b051ec37c93b28e1f1cac4c9677ff88e56930ff;p=linux.git

thermal: imx: Fix possible NULL dereference.

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

Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---

diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 06912f0602b75..fb648a45754ee 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) {