From: Xu Yihang <xuyihang@xxxxxxxxxx>
commit e1262cd2e68a0870fb9fc95eb202d22e8f0074b7 upstream.
In case of if not ext4_fc_add_tlv branch, an error return code is missing.
Cc: stable@xxxxxxxxxx
Fixes: aa75f4d3daae ("ext4: main fast-commit commit path")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Xu Yihang <xuyihang@xxxxxxxxxx>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@xxxxxxxxx>
Link: https://lore.kernel.org/r/20210408070033.123047-1-xuyihang@xxxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/fast_commit.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1093,8 +1093,10 @@ static int ext4_fc_perform_commit(journa
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);
