[PATCH 3.14 005/110] extcon: max8997: Fix NULL pointer exception on missing pdata

Greg Kroah-Hartman
2014-06-28T18:55:36Z

From: Krzysztof Kozlowski <k.kozlowski@samsung.com>

commit dfee4111febf3d9ef3a640b2cd6205c75f4e7e3d upstream.

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>
Fixes: 810d601f07c
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/extcon/extcon-max8997.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -715,7 +715,7 @@ static int max8997_muic_probe(struct pla
goto err_irq;
}

- if (pdata->muic_pdata) {
+ if (pdata && pdata->muic_pdata) {
struct max8997_muic_platform_data *muic_pdata
= pdata->muic_pdata;