linux-kernel - Re: [PATCH] drivers: mcb: fix memory leak in chameleon_parse

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Message-ID: <20140407140206.GA23383@jtlinux>
Date:	Mon, 7 Apr 2014 16:02:06 +0200
From:	Johannes Thumshirn <johannes.thumshirn@....de>
To:	Christoph Jaeger <christophjaeger@...ux.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	<johannes.thumshirn@....de>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers: mcb: fix memory leak in chameleon_parse_cells()
 error path

On Fri, Apr 04, 2014 at 09:04:58PM +0200, Christoph Jaeger wrote:
> chameleon_parse_cells() bails out if chameleon descriptor type is
> invalid but does not free the storage 'header' points to.
>
> Signed-off-by: Christoph Jaeger <christophjaeger@...ux.com>
> ---
>  drivers/mcb/mcb-parse.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mcb/mcb-parse.c b/drivers/mcb/mcb-parse.c
> index d1278b5..0049269 100644
> --- a/drivers/mcb/mcb-parse.c
> +++ b/drivers/mcb/mcb-parse.c
> @@ -141,6 +141,7 @@ int chameleon_parse_cells(struct mcb_bus *bus, phys_addr_t mapbase,
>  		default:
>  			pr_err("Invalid chameleon descriptor type 0x%x\n",
>  				dtype);
> +			kfree(header);
>  			return -EINVAL;
>  		}
>  		num_cells++;
> --
> 1.9.0
>

*Doh*

Thanks for the patch.

@Greg, how should be the process here? Should I collect MCB related patches
somewhere and forward them to you, or do you pick them up yourself?

Thanks,
	Johannes
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