linux-kernel - Re: [PATCH] OCFS2: remove useless err

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Message-ID: <5aa17eac-60ee-5360-81f9-7bff2cb76eb3@linux.alibaba.com>
Date:   Sun, 26 Jan 2020 09:52:38 +0800
From:   Joseph Qi <joseph.qi@...ux.alibaba.com>
To:     Alex Shi <alex.shi@...ux.alibaba.com>
Cc:     Mark Fasheh <mark@...heh.com>, Joel Becker <jlbec@...lplan.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        ChenGang <cg.chen@...wei.com>,
        Richard Fontana <rfontana@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        ocfs2-devel@....oracle.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] OCFS2: remove useless err



On 20/1/21 11:37, Alex Shi wrote:
> We don't need 'err' in these 2 places, better to remove them.
> 
> Signed-off-by: Alex Shi <alex.shi@...ux.alibaba.com>
> Cc: Mark Fasheh <mark@...heh.com> 
> Cc: Joel Becker <jlbec@...lplan.org> 
> Cc: Joseph Qi <joseph.qi@...ux.alibaba.com> 
> Cc: Andrew Morton <akpm@...ux-foundation.org> 
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> 
> Cc: Kate Stewart <kstewart@...uxfoundation.org> 
> Cc: ChenGang <cg.chen@...wei.com> 
> Cc: Richard Fontana <rfontana@...hat.com> 
> Cc: Thomas Gleixner <tglx@...utronix.de> 
> Cc: ocfs2-devel@....oracle.com 
> Cc: linux-kernel@...r.kernel.org 
> ---
>  fs/ocfs2/cluster/tcp.c | 3 +--
>  fs/ocfs2/dir.c         | 4 ++--
>  2 files changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
> index 48a3398f0bf5..9261c1f06a9f 100644
> --- a/fs/ocfs2/cluster/tcp.c
> +++ b/fs/ocfs2/cluster/tcp.c
> @@ -1948,7 +1948,6 @@ static void o2net_accept_many(struct work_struct *work)
>  {
>  	struct socket *sock = o2net_listen_sock;
>  	int	more;
> -	int	err;
>  
>  	/*
>  	 * It is critical to note that due to interrupt moderation
> @@ -1963,7 +1962,7 @@ static void o2net_accept_many(struct work_struct *work)
>  	 */
>  
>  	for (;;) {
> -		err = o2net_accept_one(sock, &more);
> +		o2net_accept_one(sock, &more);
>  		if (!more)
>  			break;
>  		cond_resched();
> diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
> index bdef72c0f099..5761060d2ba8 100644
> --- a/fs/ocfs2/dir.c
> +++ b/fs/ocfs2/dir.c
> @@ -676,7 +676,7 @@ static struct buffer_head *ocfs2_find_entry_el(const char *name, int namelen,
>  	int ra_ptr = 0;		/* Current index into readahead
>  				   buffer */
>  	int num = 0;
> -	int nblocks, i, err;
> +	int nblocks, i;
>  
>  	sb = dir->i_sb;
>  
> @@ -708,7 +708,7 @@ static struct buffer_head *ocfs2_find_entry_el(const char *name, int namelen,
>  				num++;
>  
>  				bh = NULL;
> -				err = ocfs2_read_dir_block(dir, b++, &bh,
> +				ocfs2_read_dir_block(dir, b++, &bh,
>  							   OCFS2_BH_READAHEAD);

Umm... missing error checking here?

Thanks,
Joseph
>  				bh_use[ra_max] = bh;
>  			}
>