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authorJoseph Qi <joseph.qi@huawei.com>2014-05-22 11:54:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-05-23 09:37:30 -0700
commit66db6cfd49825f4e3462ceee3bcbb292d57da6fb (patch)
treee1082bd92e171d338034f2ea31ef992f4ed7c331 /fs/ocfs2
parent3e030ecc0fc7de10fd0da10c1c19939872a31717 (diff)
ocfs2: fix double kmem_cache_destroy in dlm_init
In dlm_init, if create dlm_lockname_cache failed in dlm_init_master_caches, it will destroy dlm_lockres_cache which created before twice. And this will cause system die when loading modules. Signed-off-by: Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index af3f7aa73e13..ee1f88419cb0 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -472,11 +472,15 @@ bail:
void dlm_destroy_master_caches(void)
{
- if (dlm_lockname_cache)
+ if (dlm_lockname_cache) {
kmem_cache_destroy(dlm_lockname_cache);
+ dlm_lockname_cache = NULL;
+ }
- if (dlm_lockres_cache)
+ if (dlm_lockres_cache) {
kmem_cache_destroy(dlm_lockres_cache);
+ dlm_lockres_cache = NULL;
+ }
}
static void dlm_lockres_release(struct kref *kref)