jbd2: fix a potential leak of a journal_head on an error path

drop jh->b_jcount in error path

Signed-off-by: Ding Dinghua <dingdinghua@nrchpc.ac.cn>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 9dfdf010f1df77735b560ad6e64cb3665512c739..3eec82d32fd4c6886fdf823e7d3690ca2e665162 100644 (file)
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -922,8 +922,8 @@ int jbd2_journal_get_create_access(handle_t *handle, struct buffer_head *bh)
         */
        JBUFFER_TRACE(jh, "cancelling revoke");
        jbd2_journal_cancel_revoke(handle, jh);
-       jbd2_journal_put_journal_head(jh);
 out:
+       jbd2_journal_put_journal_head(jh);
        return err;
 }