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-rw-r--r--fs/jbd2/commit.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 2eb55c3361a8..efd0ce9489ae 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -694,9 +694,11 @@ void jbd2_journal_commit_transaction(journal_t *journal)
the last tag we set up. */
tag->t_flags |= cpu_to_be16(JBD2_FLAG_LAST_TAG);
-
- jbd2_descriptor_block_csum_set(journal, descriptor);
start_journal_io:
+ if (descriptor)
+ jbd2_descriptor_block_csum_set(journal,
+ descriptor);
+
for (i = 0; i < bufs; i++) {
struct buffer_head *bh = wbuf[i];
/*