linux-ext4 - Re: [PATCH] ext4: stop overwrite the errcode in ext4_setup

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Date:   Mon, 1 Jun 2020 13:47:08 +0200
From:   Jan Kara <jack@...e.cz>
To:     yangerkun <yangerkun@...wei.com>
Cc:     tytso@....edu, jaegeuk@...nel.org, jack@...e.cz,
        linux-ext4@...r.kernel.org, yi.zhang@...wei.com
Subject: Re: [PATCH] ext4: stop overwrite the errcode in ext4_setup_super

On Mon 01-06-20 15:34:04, yangerkun wrote:
> Now the errcode from ext4_commit_super will overwrite EROFS exists in
> ext4_setup_super. Actually, no need to call ext4_commit_super since we
> will return EROFS. Fix it by goto done directly.
> 
> Fixes: c89128a00838 ("ext4: handle errors on ext4_commit_super")
> Signed-off-by: yangerkun <yangerkun@...wei.com>

Yeah, makes sense. You can add:

Reviewed-by: Jan Kara <jack@...e.cz>

								Honza

> ---
>  fs/ext4/super.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
> index bf5fcb477f66..87c5611a4c67 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -2344,6 +2344,7 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
>  		ext4_msg(sb, KERN_ERR, "revision level too high, "
>  			 "forcing read-only mode");
>  		err = -EROFS;
> +		goto done;
>  	}
>  	if (read_only)
>  		goto done;
> -- 
> 2.25.4
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR