Merge commit 'v3.3-rc4'

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 62f4fb37789e..00012e31829d 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -493,6 +493,12 @@ int sysfs_attr_ns(struct kobject *kobj, const struct attribute *attr,
         const void *ns = NULL;
         int err;
 
+        if (!dir_sd) {
+                WARN(1, KERN_ERR "sysfs: kobject %s without dirent\n",
+                        kobject_name(kobj));
+                return -ENOENT;
+        }
+
         err = 0;
         if (!sysfs_ns_type(dir_sd))
                 goto out;