From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 5 Jul 2013 06:05:46 +0000 (+0300)
Subject: bcache: check for allocation failures
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=d2a65ce2ac224413b291307201c5dafb03aa90d7;p=deliverable%2Flinux.git

bcache: check for allocation failures

There is a missing NULL check after the kzalloc().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---

diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index dd3f00a42729..12a2c2846f99 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -232,6 +232,8 @@ STORE(__cached_dev)
 			bch_uuid_write(dc->disk.c);
 		}
 		env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
+		if (!env)
+			return -ENOMEM;
 		add_uevent_var(env, "DRIVER=bcache");
 		add_uevent_var(env, "CACHED_UUID=%pU", dc->sb.uuid),
 		add_uevent_var(env, "CACHED_LABEL=%s", buf);