diff --git a/[refs] b/[refs]
index 7fd20106d133..0d740eb1dd3e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 456ef1553cb2b06729d64c1d1f0f2bda34e9b201
+refs/heads/master: 5a26db5bd25cf4bf32ae9fa9f6136b6b6d5b45c5
diff --git a/trunk/fs/sysfs/dir.c b/trunk/fs/sysfs/dir.c
index f281cc6584b0..337162935d21 100644
--- a/trunk/fs/sysfs/dir.c
+++ b/trunk/fs/sysfs/dir.c
@@ -678,10 +678,8 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
 	sd = sysfs_find_dirent(parent_sd, dentry->d_name.name);
 
 	/* no such entry */
-	if (!sd) {
-		ret = ERR_PTR(-ENOENT);
+	if (!sd)
 		goto out_unlock;
-	}
 
 	/* attach dentry and inode */
 	inode = sysfs_get_inode(sd);
@@ -783,7 +781,6 @@ int sysfs_rename_dir(struct kobject * kobj, const char *new_name)
 	old_dentry = sysfs_get_dentry(sd);
 	if (IS_ERR(old_dentry)) {
 		error = PTR_ERR(old_dentry);
-		old_dentry = NULL;
 		goto out;
 	}
 
@@ -851,7 +848,6 @@ int sysfs_move_dir(struct kobject *kobj, struct kobject *new_parent_kobj)
 	old_dentry = sysfs_get_dentry(sd);
 	if (IS_ERR(old_dentry)) {
 		error = PTR_ERR(old_dentry);
-		old_dentry = NULL;
 		goto out;
 	}
 	old_parent = old_dentry->d_parent;
@@ -859,7 +855,6 @@ int sysfs_move_dir(struct kobject *kobj, struct kobject *new_parent_kobj)
 	new_parent = sysfs_get_dentry(new_parent_sd);
 	if (IS_ERR(new_parent)) {
 		error = PTR_ERR(new_parent);
-		new_parent = NULL;
 		goto out;
 	}
 
@@ -883,6 +878,7 @@ int sysfs_move_dir(struct kobject *kobj, struct kobject *new_parent_kobj)
 	error = 0;
 	d_add(new_dentry, NULL);
 	d_move(old_dentry, new_dentry);
+	dput(new_dentry);
 
 	/* Remove from old parent's list and insert into new parent's list. */
 	sysfs_unlink_sibling(sd);
diff --git a/trunk/kernel/lockdep.c b/trunk/kernel/lockdep.c
index 723bd9f92556..4335f12a27c6 100644
--- a/trunk/kernel/lockdep.c
+++ b/trunk/kernel/lockdep.c
@@ -2943,9 +2943,10 @@ void lockdep_free_key_range(void *start, unsigned long size)
 	struct list_head *head;
 	unsigned long flags;
 	int i;
+	int locked;
 
 	raw_local_irq_save(flags);
-	graph_lock();
+	locked = graph_lock();
 
 	/*
 	 * Unhash all classes that were created by this module:
@@ -2959,7 +2960,8 @@ void lockdep_free_key_range(void *start, unsigned long size)
 				zap_class(class);
 	}
 
-	graph_unlock();
+	if (locked)
+		graph_unlock();
 	raw_local_irq_restore(flags);
 }
 
@@ -2969,6 +2971,7 @@ void lockdep_reset_lock(struct lockdep_map *lock)
 	struct list_head *head;
 	unsigned long flags;
 	int i, j;
+	int locked;
 
 	raw_local_irq_save(flags);
 
@@ -2987,7 +2990,7 @@ void lockdep_reset_lock(struct lockdep_map *lock)
 	 * Debug check: in the end all mapped classes should
 	 * be gone.
 	 */
-	graph_lock();
+	locked = graph_lock();
 	for (i = 0; i < CLASSHASH_SIZE; i++) {
 		head = classhash_table + i;
 		if (list_empty(head))
@@ -3000,7 +3003,8 @@ void lockdep_reset_lock(struct lockdep_map *lock)
 			}
 		}
 	}
-	graph_unlock();
+	if (locked)
+		graph_unlock();
 
 out_restore:
 	raw_local_irq_restore(flags);