[DLM] fix reference counting

This is a fix for the patch

021d2ff3a08019260a1dc002793c92d6bf18afb6

I left off a dlm_hold_rsb which causes the box to panic if you try to use
debugfs.  This patch fixes the problem.  Sorry about that,

Signed-off-by: Josef Bacik <jwhiter@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index 184be9870c63..9f5de37706a9 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -250,6 +250,7 @@ static int rsb_iter_next(struct rsb_iter *ri)
                         goto top;
                 }
                 ri->rsb = list_entry(ri->next, struct dlm_rsb, res_hashchain);
+                dlm_hold_rsb(ri->rsb);
                 read_unlock(&ls->ls_rsbtbl[i].lock);
                 dlm_put_rsb(old);
         }