From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Wed, 9 Apr 2014 13:20:14 +0000 (+0200)
Subject: extcon: max8997: Fix NULL pointer exception on missing pdata
X-Git-Tag: v3.16-rc1~30^2~38^2~21^2~22
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dfee4111febf3d9ef3a640b2cd6205c75f4e7e3d;p=thirdparty%2Fkernel%2Flinux.git

extcon: max8997: Fix NULL pointer exception on missing pdata

Fix NULL pointer exception when platform data is not supplied. The
driver dereferenced pdata pointer where it could be NULL.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: 810d601f07c
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---

diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 6a00464658c50..5e1b88cecb76a 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -715,7 +715,7 @@ static int max8997_muic_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 
-	if (pdata->muic_pdata) {
+	if (pdata && pdata->muic_pdata) {
 		struct max8997_muic_platform_data *muic_pdata
 			= pdata->muic_pdata;