[PATCH -next] ext4: fix error return code in ext4_fc_perform_commit()

[Xu Yihang]

In case of if not ext4_fc_add_tlv branch, an error return code is missing.

Fixes: aa75f4d3daae ("ext4: main fast-commit commit path")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Xu Yihang <xuyih...@huawei.com>
---
 fs/ext4/fast_commit.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 7541d0b5d706..312273ed8a9f 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1088,8 +1088,10 @@ static int ext4_fc_perform_commit(journal_t *journal)
                head.fc_tid = cpu_to_le32(
                        sbi->s_journal->j_running_transaction->t_tid);
                if (!ext4_fc_add_tlv(sb, EXT4_FC_TAG_HEAD, sizeof(head),
-                       (u8 *)&head, &crc))
+                       (u8 *)&head, &crc)) {
+                       ret = -ENOSPC;
                        goto out;
+               }
        }
 
        spin_lock(&sbi->s_fc_lock);
-- 
2.17.1