linux-kernel - Re: [PATCH] xen-scsifront: Add a missing call to kfree

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Message-ID: <1320a162-dc36-5833-a746-367134dae5e7@suse.com>
Date:   Mon, 21 Nov 2016 07:01:36 +0100
From:   Juergen Gross <jgross@...e.com>
To:     Quentin Lambert <lambert.quentin@...il.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        David Vrabel <david.vrabel@...rix.com>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        xen-devel@...ts.xenproject.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] xen-scsifront: Add a missing call to kfree

On 19/11/16 19:22, Quentin Lambert wrote:
> Most error branches following the call to kmalloc contain
> a call to kfree. This patch add these calls where they are
> missing.
> 
> This issue was found with Hector.
> 
> Signed-off-by: Quentin Lambert <lambert.quentin@...il.com>

Nice catch. I think this will need some more work, I'll do a
follow-on patch.

Reviewed-by: Juergen Gross <jgross@...e.com>

> 
> ---
>  drivers/scsi/xen-scsifront.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- a/drivers/scsi/xen-scsifront.c
> +++ b/drivers/scsi/xen-scsifront.c
> @@ -627,6 +627,7 @@ static int scsifront_action_handler(stru
>  
>  	if (scsifront_enter(info)) {
>  		spin_unlock_irq(host->host_lock);
> +		kfree(shadow);
>  		return FAILED;
>  	}
>  
>