linux-kernel - Re: [PATCH 2/6] fs: befs: remove in vain variable assignment

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Message-ID: <579F4D92.6020701@osg.samsung.com>
Date:	Mon, 01 Aug 2016 14:24:34 +0100
From:	Luis de Bethencourt <luisbg@....samsung.com>
To:	Salah Triki <salah.triki@...il.com>, akpm@...ux-foundation.org,
	viro@...iv.linux.org.uk
CC:	mhocko@...e.com, vdavydov@...tuozzo.com,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] fs: befs: remove in vain variable assignment

On 31/07/16 21:34, Salah Triki wrote:
> There is no need to set *value, it will be overwritten later.
> 
> Signed-off-by: Salah Triki <salah.triki@...il.com>
> ---
>  fs/befs/btree.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/fs/befs/btree.c b/fs/befs/btree.c
> index a0e8cfa..f33fc6c 100644
> --- a/fs/befs/btree.c
> +++ b/fs/befs/btree.c
> @@ -348,8 +348,6 @@ befs_find_key(struct super_block *sb, struct befs_btree_node *node,
>  
>  	befs_debug(sb, "---> %s %s", __func__, findkey);
>  
> -	*value = 0;
> -
>  	findkey_len = strlen(findkey);
>  
>  	/* if node can not contain key, just skeep this node */
> 

Hi Salah,

The key here is that befs_btree_find(), the only consumer of befs_find_key(),
doesn't use the value if the return is BEFS_BT_NOT_FOUND.

Tested the patch anyway to be sure.

Acked-by: Luis de Bethencourt <luisbg@....samsung.com>

Pushed to the befs-next branch:
https://github.com/luisbg/linux-befs/tree/befs-next

Thanks!
Luis