1 files changed, 8 insertions, 1 deletions

diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index 61ba670b9e02..9e27a1675794 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -17,6 +17,7 @@
 #include <linux/debugfs.h>
 
 #include "dlm_internal.h"
+#include "lock.h"
 
 #define DLM_DEBUG_BUF_LEN 4096
 static char debug_buf[DLM_DEBUG_BUF_LEN];
@@ -166,6 +167,9 @@ static int rsb_iter_next(struct rsb_iter *ri)
                         read_lock(&ls->ls_rsbtbl[i].lock);
                         if (!list_empty(&ls->ls_rsbtbl[i].list)) {
                                 ri->next = ls->ls_rsbtbl[i].list.next;
+                                ri->rsb = list_entry(ri->next, struct dlm_rsb,
+                                                        res_hashchain);
+                                dlm_hold_rsb(ri->rsb);
                                 read_unlock(&ls->ls_rsbtbl[i].lock);
                                 break;
                         }
@@ -176,6 +180,7 @@ static int rsb_iter_next(struct rsb_iter *ri)
                 if (ri->entry >= ls->ls_rsbtbl_size)
                         return 1;
         } else {
+                struct dlm_rsb *old = ri->rsb;
                 i = ri->entry;
                 read_lock(&ls->ls_rsbtbl[i].lock);
                 ri->next = ri->next->next;
@@ -184,11 +189,13 @@ static int rsb_iter_next(struct rsb_iter *ri)
                         ri->next = NULL;
                         ri->entry++;
                         read_unlock(&ls->ls_rsbtbl[i].lock);
+                        dlm_put_rsb(old);
                         goto top;
                 }
+                ri->rsb = list_entry(ri->next, struct dlm_rsb, res_hashchain);
                 read_unlock(&ls->ls_rsbtbl[i].lock);
+                dlm_put_rsb(old);
         }
-        ri->rsb = list_entry(ri->next, struct dlm_rsb, res_hashchain);
 
         return 0;
 }