slob: Check for NULL pointer before calling ctor()

[mirror_ubuntu-bionic-kernel.git] / mm / slob.c

diff --git a/mm/slob.c b/mm/slob.c
index f729c46639fa6606a9591d1f9891a928f801f47d..3d73b3b8fb1dcba18cfde8f088e9c6d974ce4508 100644 (file)
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -554,7 +554,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
                                            flags, node);
        }
 
-       if (c->ctor)
+       if (b && c->ctor)
                c->ctor(b);
 
        kmemleak_alloc_recursive(b, c->size, 1, c->flags, flags);