[PATCH] lockdep: also check for freed locks in kmem_cache_free()

kmem_cache_free() was missing the check for freeing held locks.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

mm/slab.c

@@ -3751,6 +3751,7 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
 	BUG_ON(virt_to_cache(objp) != cachep);
 
 	local_irq_save(flags);
+	debug_check_no_locks_freed(objp, obj_size(cachep));
 	__cache_free(cachep, objp);
 	local_irq_restore(flags);
 }