1 files changed, 3 insertions, 2 deletions

diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 01e9e0076a92..6a1fcff95f7c 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -796,8 +796,9 @@ DECLARE_EVENT_CLASS(ext4__mballoc,
         ),
 
         TP_fast_assign(
-                __entry->dev            = ac->ac_inode->i_sb->s_dev;
-                __entry->ino            = ac->ac_inode->i_ino;
+                __entry->dev            = ac->ac_sb->s_dev;
+                __entry->ino            = ac->ac_inode ?
+                                                ac->ac_inode->i_ino : 0;
                 __entry->result_logical = ac->ac_b_ex.fe_logical;
                 __entry->result_start   = ac->ac_b_ex.fe_start;
                 __entry->result_group   = ac->ac_b_ex.fe_group;