From: Axel Lin <axel.lin@ingics.com>
Date: Mon, 13 May 2013 13:37:26 +0000 (+0800)
Subject: hwmon: (iio_hwmon) Fix null pointer dereference
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=159c8cddd9259e9379f37f0a69ddcbb01c4e8b77;p=deliverable%2Flinux.git

hwmon: (iio_hwmon) Fix null pointer dereference

This patch fixes the null pointer dereference in goto error_release_channels
path when allocate memory for st fails.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---

diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
index 368497fa2627..52b77afebde1 100644
--- a/drivers/hwmon/iio_hwmon.c
+++ b/drivers/hwmon/iio_hwmon.c
@@ -161,7 +161,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
 error_remove_group:
 	sysfs_remove_group(&dev->kobj, &st->attr_group);
 error_release_channels:
-	iio_channel_release_all(st->channels);
+	iio_channel_release_all(channels);
 	return ret;
 }