ocfs2: fix possible memory leak in dlm_process_recovery_data

Commit Message

Joseph Qi May 1, 2013, 4:06 a.m. UTC

We create newlock each time in dlm_process_recovery_data, but we don't free it when it is bad, and then it will lead to memory leak.

Signed-off-by: Joseph Qi <[e-mail]>

---
 fs/ocfs2/dlm/dlmrecovery.c |    6 ++++++
 1 file changed, 6 insertions(+)

--
1.7.9.7

Patch

diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index eeac97b..93de2e0 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -1974,6 +1974,12 @@  skip_lvb:
                 res->lockname.len, res->lockname.name, ml->node);
            dlm_lockres_set_refmap_bit(dlm, res, ml->node);
            added++;
+       } else {
+           /* should free newlock if it is bad */
+           if (newlock) {
+               dlm_lock_put(newlock);
+               newlock = NULL;
+           }
        }
        spin_unlock(&res->spinlock);
    }