linux-kernel - Re: [PATCH] kernel: acct: kfree, also set related variable to NULL after kfree

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Date:	Fri, 12 Apr 2013 09:29:49 -0500
From:	"Serge E. Hallyn" <serge@...lyn.com>
To:	Chen Gang <gang.chen@...anux.com>
Cc:	Al Viro <viro@...iv.linux.org.uk>,
	Jeff Layton <jlayton@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	"linux-kernel@...r.kernel.org >> \"linux-kernel@...r.kernel.org\"" 
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kernel: acct: kfree, also set related variable to NULL
 after kfree

Quoting Chen Gang (gang.chen@...anux.com):
> 
>   after kfree acct, also set ns->bacct to NULL.
> 
> Signed-off-by: Chen Gang <gang.chen@...anux.com>

Acked-by: Serge Hallyn <serge.hallyn@...onical.com>

> ---
>  kernel/acct.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/kernel/acct.c b/kernel/acct.c
> index 85389fe..91a23eb 100644
> --- a/kernel/acct.c
> +++ b/kernel/acct.c
> @@ -332,6 +332,7 @@ void acct_exit_ns(struct pid_namespace *ns)
>  	spin_lock(&acct_lock);
>  	if (acct->file != NULL)
>  		acct_file_reopen(acct, NULL, NULL);
> +	ns->bacct = NULL;
>  	spin_unlock(&acct_lock);
>  
>  	kfree(acct);
> -- 
> 1.7.7.6
> --
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