2 files changed, 10 insertions, 1 deletions

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 62f4fb37789..00012e31829 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;
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 4a802b4a905..85eb81683a2 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -318,8 +318,11 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const void *ns, const cha
         struct sysfs_addrm_cxt acxt;
         struct sysfs_dirent *sd;
 
-        if (!dir_sd)
+        if (!dir_sd) {
+                WARN(1, KERN_WARNING "sysfs: can not remove '%s', no directory\n",
+                        name);
                 return -ENOENT;
+        }
 
         sysfs_addrm_start(&acxt, dir_sd);