linux-ext4 - Re: [PATCH] e2fsck: free bh on csum verify error in do_one

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Date:	Fri, 18 Jul 2014 11:04:45 +0200 (CEST)
From:	Lukáš Czerner <lczerner@...hat.com>
To:	Eric Sandeen <sandeen@...hat.com>
cc:	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] e2fsck: free bh on csum verify error in do_one_pass

On Thu, 17 Jul 2014, Eric Sandeen wrote:

> Date: Thu, 17 Jul 2014 16:11:59 -0500
> From: Eric Sandeen <sandeen@...hat.com>
> To: ext4 development <linux-ext4@...r.kernel.org>
> Subject: [PATCH] e2fsck: free bh on csum verify error in do_one_pass
> 
> Coverity (re-)spotted this; it was triaged as a false positive,
> but it seems pretty clear that the bh (which was just checked)
> isn't currently freed before the function exits.

Looks good.

Reviewed-by: Lukas Czerner <lczerner@...hat.com>

Thanks!
-Lukas


> 
> Signed-off-by: Eric Sandeen <sandeen@...hat.com>
> ---
> 
> diff --git a/e2fsck/recovery.c b/e2fsck/recovery.c
> index 54579c2..66d02b2 100644
> --- a/e2fsck/recovery.c
> +++ b/e2fsck/recovery.c
> @@ -523,6 +523,7 @@ static int do_one_pass(journal_t *journal,
>  			    !jbd2_descr_block_csum_verify(journal,
>  							  bh->b_data)) {
>  				err = -EIO;
> +				brelse(bh);
>  				goto failed;
>  			}
>  
> 
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