linux-kernel - Re: [PATCH] DRM: TTM: Fix memory leak issue in ttm_agp_tt_create().

Open Source and information security mailing list archives

Date:	Fri, 6 Sep 2013 09:23:00 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Manjunath Goudar <manjunath.goudar@...aro.org>
Cc:	patches@...aro.org, linaro-kernel@...ts.linaro.org,
	Jeyaraman R <jeyaraman.rangasamy@....com>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	David Howells <dhowells@...hat.com>, dsaxena@...aro.org,
	Dave Airlie <airlied@...hat.com>,
	Dave Jones <davej@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: [PATCH] DRM: TTM: Fix memory leak issue in ttm_agp_tt_create().

On Wed, Sep 04, 2013 at 11:58:10AM +0530, Manjunath Goudar wrote:
> From: Jeyaraman R <jeyaraman.rangasamy@....com> 
> 
> This patch adds kfree() in ttm_agp_tt_create() to avoide the
> memory leak, without this there is a chance of memory leak in
> ttm_tt_init() fail case.
> 
> Signed-off-by: Jeyaraman R <jeyaraman.rangasamy@....com>
> Signed-off-by: Manjunath Goudar <manjunath.goudar@...aro.org>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
> Cc: David Howells <dhowells@...hat.com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Dave Jones <davej@...hat.com>
> Cc: Dave Airlie <airlied@...hat.com>
> Cc: dri-devel@...ts.freedesktop.org
> Cc: linux-kernel@...r.kernel.org

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>

> ---
>  drivers/gpu/drm/ttm/ttm_agp_backend.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
> index 3302f99..764be36 100644
> --- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
> +++ b/drivers/gpu/drm/ttm/ttm_agp_backend.c
> @@ -126,6 +126,7 @@ struct ttm_tt *ttm_agp_tt_create(struct ttm_bo_device *bdev,
>  	agp_be->ttm.func = &ttm_agp_func;
>  
>  	if (ttm_tt_init(&agp_be->ttm, bdev, size, page_flags, dummy_read_page)) {
> +		kfree(agp_be);
>  		return NULL;
>  	}
>  
> -- 
> 1.8.1.2
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
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