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| author | Joseph Qi <joseph.qi@huawei.com> | 2015-09-04 15:43:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-04 16:54:41 -0700 |
| commit | cdd09f49cb271d95cbe69ef886459e0490040e98 (patch) | |
| tree | 532e1e35441127420684b66e0b17788f2ba3b56f /fs/ocfs2 | |
| parent | 914a9b74295774b92409fbc3e0abcfa9185d9469 (diff) | |
| download | op-kernel-dev-cdd09f49cb271d95cbe69ef886459e0490040e98.zip op-kernel-dev-cdd09f49cb271d95cbe69ef886459e0490040e98.tar.gz | |
ocfs2: fix BUG when o2hb_register_callback fails
In dlm_register_domain_handlers, if o2hb_register_callback fails, it
will call dlm_unregister_domain_handlers to unregister. This will
trigger the BUG_ON in o2hb_unregister_callback because hc_magic is 0.
So we should call o2hb_setup_callback to initialize hc first.
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/dlmdomain.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 7df88a6..4f75070 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -1725,12 +1725,13 @@ static int dlm_register_domain_handlers(struct dlm_ctxt *dlm) o2hb_setup_callback(&dlm->dlm_hb_down, O2HB_NODE_DOWN_CB, dlm_hb_node_down_cb, dlm, DLM_HB_NODE_DOWN_PRI); + o2hb_setup_callback(&dlm->dlm_hb_up, O2HB_NODE_UP_CB, + dlm_hb_node_up_cb, dlm, DLM_HB_NODE_UP_PRI); + status = o2hb_register_callback(dlm->name, &dlm->dlm_hb_down); if (status) goto bail; - o2hb_setup_callback(&dlm->dlm_hb_up, O2HB_NODE_UP_CB, - dlm_hb_node_up_cb, dlm, DLM_HB_NODE_UP_PRI); status = o2hb_register_callback(dlm->name, &dlm->dlm_hb_up); if (status) goto bail; |
