linux-ext4 - Re: [PATCH 07/25] e2fsck: handle null fs in print

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Message-ID: <20110916225332.GJ16246@thunk.org>
Date:	Fri, 16 Sep 2011 18:53:32 -0400
From:	Ted Ts'o <tytso@....edu>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 07/25] e2fsck: handle null fs in print_pathname()

On Fri, Sep 16, 2011 at 03:49:22PM -0500, Eric Sandeen wrote:
> testing fs for NULL in expand_percent_expression():
> 
> 	e2fsck_ctx = fs ? (e2fsck_t) fs->priv_data : NULL;
> 
> implies that fs could be NULL, but it's passed to print_pathname()
> which defererences it without further testing.
> 
> So make this safe by returning "???" for a nul fs.
> 
> Signed-off-by: Eric Sandeen <sandeen@...hat.com>

Applied, thanks.

					- Ted
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