From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 25 Jul 2011 14:16:41 +0000 (-0300)
Subject: [media] adp1653: check platform_data before usage
X-Git-Tag: v3.2-rc1~112^2~334
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=572064280ecc9dc89227cf3797bc2144896a34f5;p=platform%2Fkernel%2Flinux-stable.git

[media] adp1653: check platform_data before usage

The driver requires platform_data to be present. That's why we need to check
and fail in case of the absence of necessary data.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/adp1653.c b/drivers/media/video/adp1653.c
index be7befd..8ad89ff 100644
--- a/drivers/media/video/adp1653.c
+++ b/drivers/media/video/adp1653.c
@@ -413,6 +413,10 @@ static int adp1653_probe(struct i2c_client *client,
 	struct adp1653_flash *flash;
 	int ret;
 
+	/* we couldn't work without platform data */
+	if (client->dev.platform_data == NULL)
+		return -ENODEV;
+
 	flash = kzalloc(sizeof(*flash), GFP_KERNEL);
 	if (flash == NULL)
 		return -ENOMEM;