This is a note to let you know that I've just added the patch titled
ext4: fix error code in ext4_commit_super
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ext4-fix-error-code-in-ext4_commit_super.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f88f1466e2a2e5ca17dfada436d3efa1b03a3972 Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@xxxxxxxx>
Date: Fri, 2 Apr 2021 18:16:31 +0800
Subject: ext4: fix error code in ext4_commit_super
From: Fengnan Chang <changfengnan@xxxxxxxx>
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@xxxxxxxxxx
Signed-off-by: Fengnan Chang <changfengnan@xxxxxxxx>
Reviewed-by: Andreas Dilger <adilger@xxxxxxxxx>
Link: https://lore.kernel.org/r/20210402101631.561-1-changfengnan@xxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/super.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4678,8 +4678,10 @@ static int ext4_commit_super(struct supe
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;
/*
* If the file system is mounted read-only, don't update the
Patches currently in stable-queue which might be from changfengnan@xxxxxxxx are
queue-4.9/ext4-fix-error-code-in-ext4_commit_super.patch
