ocfs2/dlm: Add missing dlm_lockres_put()s

dlm_master_request_handler() forgot to put a lockres when
dlm_assert_master_worker() failed or was skipped.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 320081d53f22..ea6b89577860 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1663,7 +1663,12 @@ way_up_top:
                 dlm_put_mle(tmpmle);
         }
 send_response:
-
+        /*
+         * __dlm_lookup_lockres() grabbed a reference to this lockres.
+         * The reference is released by dlm_assert_master_worker() under
+         * the call to dlm_dispatch_assert_master().  If
+         * dlm_assert_master_worker() isn't called, we drop it here.
+         */
         if (dispatch_assert) {
                 if (response != DLM_MASTER_RESP_YES)
                         mlog(ML_ERROR, "invalid response %d\n", response);
@@ -1678,7 +1683,11 @@ send_response:
                 if (ret < 0) {
                         mlog(ML_ERROR, "failed to dispatch assert master work\n");
                         response = DLM_MASTER_RESP_ERROR;
+                        dlm_lockres_put(res);
                 }
+        } else {
+                if (res)
+                        dlm_lockres_put(res);
         }
 
         dlm_put(dlm);