diff options
| author | Fengnan Chang <changfengnan@vivo.com> | 2021-04-02 18:16:31 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-10 12:19:31 +0200 |
| commit | c98980de8c08fa0281f6a2fa76d5840794831611 (patch) | |
| tree | 5fd97de31ad9aa7fe98dceced75ddd8badcded79 | |
| parent | 05b3454aff5a804c2e962a0ae6268511ca00cf21 (diff) | |
ext4: fix error code in ext4_commit_super
commit f88f1466e2a2e5ca17dfada436d3efa1b03a3972 upstream.
We should set the error code when ext4_commit_super check argument failed.
Found in code review.
Fixes: c4be0c1dc4cdc ("filesystem freeze: add error handling of write_super_lockfs/unlockfs").
Cc: stable@kernel.org
Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Link: https://lore.kernel.org/r/20210402101631.561-1-changfengnan@vivo.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/ext4/super.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index d4ecae25d807..1de02b90a1ef 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4494,8 +4494,10 @@ static int ext4_commit_super(struct super_block *sb, int sync) struct buffer_head *sbh = EXT4_SB(sb)->s_sbh; int error = 0; - if (!sbh || block_device_ejected(sb)) - return error; + if (!sbh) + return -EINVAL; + if (block_device_ejected(sb)) + return -ENODEV; /* * The superblock bh should be mapped, but it might not be if the |