From 75af271ed5f51b1f3506c7c1d567b1f32e5c9206 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 15 May 2012 11:58:12 +0300 Subject: dlm: NULL dereference on failure in kmem_cache_create() We aren't allowed to pass NULL pointers to kmem_cache_destroy() so if both allocations fail, it leads to a NULL dereference. Signed-off-by: Dan Carpenter Signed-off-by: David Teigland --- fs/dlm/memory.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'fs/dlm') diff --git a/fs/dlm/memory.c b/fs/dlm/memory.c index da64df7..7cd24bc 100644 --- a/fs/dlm/memory.c +++ b/fs/dlm/memory.c @@ -21,21 +21,19 @@ static struct kmem_cache *rsb_cache; int __init dlm_memory_init(void) { - int ret = 0; - lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb), __alignof__(struct dlm_lkb), 0, NULL); if (!lkb_cache) - ret = -ENOMEM; + return -ENOMEM; rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb), __alignof__(struct dlm_rsb), 0, NULL); if (!rsb_cache) { kmem_cache_destroy(lkb_cache); - ret = -ENOMEM; + return -ENOMEM; } - return ret; + return 0; } void dlm_memory_exit(void) -- cgit v1.1