linux-kernel - Re: [PATCH] nilfs2: Remove an uninitialization warning in nilfs_btree_propagate

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Date:	Fri, 02 Apr 2010 20:09:24 +0900 (JST)
From:	Ryusuke Konishi <konishi.ryusuke@....ntt.co.jp>
To:	lihong.hi@...il.com
Cc:	konishi.ryusuke@....ntt.co.jp, linux-nilfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nilfs2: Remove an uninitialization warning in
 nilfs_btree_propagate_v()

On Fri, 2 Apr 2010 18:40:39 +0800, Li Hong <lihong.hi@...il.com> wrote:
> `make CONFIG_NILFS2_FS=m M=fs/nilfs2/` will give the following warnings:
> 
> fs/nilfs2/btree.c: In function ‘nilfs_btree_propagate’:
> fs/nilfs2/btree.c:1882: warning: ‘maxlevel’ may be used uninitialized in this function
> fs/nilfs2/btree.c:1882: note: ‘maxlevel’ was declared here
> 
> Set maxlevel = 0 to fix it.
> 
> Signed-off-by: Li Hong <lihong.hi@...il.com>

Applied, thanks.

Ryusuke Konishi

> ---
>  fs/nilfs2/btree.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
> index 7cdd98b..76c38e3 100644
> --- a/fs/nilfs2/btree.c
> +++ b/fs/nilfs2/btree.c
> @@ -1879,7 +1879,7 @@ static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
>  				   struct nilfs_btree_path *path,
>  				   int level, struct buffer_head *bh)
>  {
> -	int maxlevel, ret;
> +	int maxlevel = 0, ret;
>  	struct nilfs_btree_node *parent;
>  	struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
>  	__u64 ptr;
> -- 
> 1.6.3.3
> 
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