linux-kernel - Re: [PATCH 1/4 V2] ocfs2: use retval instead of status for checking error

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Message-ID: <CAHb8M2AMPhDwMjgvrT=igUCcCH4CgRHid9683kSjFAWHnpNQZw@mail.gmail.com>
Date:	Fri, 13 Mar 2015 12:59:12 +0900
From:	DaeSeok Youn <daeseok.youn@...il.com>
To:	mfasheh@...e.com, Andrew Morton <akpm@...ux-foundation.org>
Cc:	Joel Becker <jlbec@...lplan.org>,
	"ocfs2-devel@....oracle.com" <ocfs2-devel@....oracle.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Richard Weinberger <richard.weinberger@...il.com>
Subject: Re: [PATCH 1/4 V2] ocfs2: use retval instead of status for checking error

Hi,

This patch have been pending for 2 weeks.
Do I need to check other things?

please, check for me.

Thanks!

regards,
Daeseok Youn

2015-02-28 8:48 GMT+09:00 Daeseok Youn <daeseok.youn@...il.com>:
> The use of 'status' in __ocfs2_add_entry() can return wrong
> status when some functions are failed.
>
> If ocfs2_journal_access_db() in __ocfs2_add_entry() is failed,
> that status is saved to 'status' but return variable is 'retval'
> which is saved 'success' status. In case of this,  __ocfs2_add_entry()
> is failed but can be returned as 'success'.
>
> So replace 'status' with 'retval'.
>
> Signed-off-by: Daeseok Youn <daeseok.youn@...il.com>
> ---
> V2 : update changelog
>
>  fs/ocfs2/dir.c |   12 ++++++------
>  1 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
> index b08050b..1478a50 100644
> --- a/fs/ocfs2/dir.c
> +++ b/fs/ocfs2/dir.c
> @@ -1617,7 +1617,7 @@ int __ocfs2_add_entry(handle_t *handle,
>         struct ocfs2_dir_entry *de, *de1;
>         struct ocfs2_dinode *di = (struct ocfs2_dinode *)parent_fe_bh->b_data;
>         struct super_block *sb = dir->i_sb;
> -       int retval, status;
> +       int retval;
>         unsigned int size = sb->s_blocksize;
>         struct buffer_head *insert_bh = lookup->dl_leaf_bh;
>         char *data_start = insert_bh->b_data;
> @@ -1695,22 +1695,22 @@ int __ocfs2_add_entry(handle_t *handle,
>                         }
>
>                         if (insert_bh == parent_fe_bh)
> -                               status = ocfs2_journal_access_di(handle,
> +                               retval = ocfs2_journal_access_di(handle,
>                                                                  INODE_CACHE(dir),
>                                                                  insert_bh,
>                                                                  OCFS2_JOURNAL_ACCESS_WRITE);
>                         else {
> -                               status = ocfs2_journal_access_db(handle,
> +                               retval = ocfs2_journal_access_db(handle,
>                                                                  INODE_CACHE(dir),
>                                                                  insert_bh,
>                                               OCFS2_JOURNAL_ACCESS_WRITE);
>
>                                 if (ocfs2_dir_indexed(dir)) {
> -                                       status = ocfs2_dx_dir_insert(dir,
> +                                       retval = ocfs2_dx_dir_insert(dir,
>                                                                 handle,
>                                                                 lookup);
> -                                       if (status) {
> -                                               mlog_errno(status);
> +                                       if (retval) {
> +                                               mlog_errno(retval);
>                                                 goto bail;
>                                         }
>                                 }
> --
> 1.7.1
>
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