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DRM: TTM: Fix memory leak issue in ttm_agp_tt_create().

Message ID 1378276090-10130-1-git-send-email-manjunath.goudar@linaro.org
State New
Headers show

Commit Message

manjunath.goudar@linaro.org Sept. 4, 2013, 6:28 a.m. UTC 
From: Jeyaraman R <jeyaraman.rangasamy@lge.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@lge.com>
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: David Airlie <airlied@linux.ie>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Jones <davej@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/gpu/drm/ttm/ttm_agp_backend.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Konrad Rzeszutek Wilk Sept. 6, 2013, 1:23 p.m. UTC | #1 
On Wed, Sep 04, 2013 at 11:58:10AM +0530, Manjunath Goudar wrote:
> From: Jeyaraman R <jeyaraman.rangasamy@lge.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@lge.com>
> Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
> Cc: David Airlie <airlied@linux.ie>
> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
> Cc: David Howells <dhowells@redhat.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Dave Jones <davej@redhat.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-kernel@vger.kernel.org

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.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@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
diff mbox

Patch

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;
 	}