From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chen Gang <gang.chen@asianux.com>
Subject: Re: [PATCH] fs/jbd: set pointer = NULL, after kfree it.
Date: Fri, 04 Jan 2013 09:37:08 +0800
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------- Original Message -------
From: Jan Kara <jack@suse.cz>
To: Chen Gang <gang.chen@asianux.com>
Cc: akpm@linux-foundation.org; jack@suse.cz;linux-ext4@vger.kernel.org
Sent: Mon, 31 Dec 2012 16:23:12 +0100
Subject: Re: [PATCH] fs/jbd: set pointer = NULL, after kfree it.

>   The journal structure will get freed immediately after we return from
> journal_init_revoke() (in case it failed) or journal_destroy_revoke() so I
> don't see a point in setting the pointers to NULL. Or do I miss something?

  ok, I can understand.