linux-kernel - Re: [PATCH] drivers/mmc/card/block.c: fix potential null dereference 'idata'

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Message-ID: <m31v0551es.fsf@pullcord.laptop.org>
Date:	Wed, 11 May 2011 00:03:39 -0400
From:	Chris Ball <cjb@...top.org>
To:	Vladimir Motyka <vladimir.motyka@...il.com>
Cc:	Julia Lawall <julia@...u.dk>, kernel-janitors@...r.kernel.org,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/mmc/card/block.c: fix potential null dereference 'idata'

Hi,

On Mon, May 09 2011, Vladimir Motyka wrote:
> When allocation of idata failed there was a null dereference. Also avoid
> calling kfree where it is needn't.
>
> ---
> diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
> index 407836d..126c7f4 100644
> --- a/drivers/mmc/card/block.c
> +++ b/drivers/mmc/card/block.c
> @@ -237,24 +237,24 @@ static struct mmc_blk_ioc_data
> *mmc_blk_ioctl_copy_from_user(

Thanks, I've pushed this version of the patch to mmc-next.

(The patch you sent was corrupted by gmail; it added a line break on the
last line quoted above where there shouldn't be one.  Please fix that
for next time.)

- Chris.
-- 
Chris Ball   <cjb@...top.org>   <http://printf.net/>
One Laptop Per Child
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