linux-kernel - Re: [PATCH] Fix missing braces in ncpfs:ncp

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Date:	Thu, 5 Sep 2013 05:29:16 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Fix missing braces in ncpfs:ncp_lookup

On Thu, Sep 05, 2013 at 12:04:18AM -0400, Dave Jones wrote:
> Signed-off-by: Dave Jones <davej@...oraproject.org>
> 
> diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
> index 3be0474..1f6419f 100644
> --- a/fs/ncpfs/dir.c
> +++ b/fs/ncpfs/dir.c
> @@ -857,10 +857,11 @@ static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry, unsig
>  	if (ncp_is_server_root(dir)) {
>  		res = ncp_io2vol(server, __name, &len, dentry->d_name.name,
>  				 dentry->d_name.len, 1);
> -		if (!res)
> +		if (!res) {
>  			res = ncp_lookup_volume(server, __name, &(finfo.i));
>  			if (!res)
>  				ncp_update_known_namespace(server, finfo.i.volNumber, NULL);
> +		}

That, or shift two lines one indent level out ;-)  I mean,
	if (!foo)
		foo = bar();
	if (!foo)
		baz();
is provably equivalent to
	if (!foo) {
		foo = bar();
		if (!foo)
			baz();
	}

I agree that the current form shouldn't be left as-is - the kernel isn't
IOCCC and all such.  The only question is which variant would read better...
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