[PATCH 5/5] drm/exynos: Fix potential NULL pointer dereference

[Inki Dae]

This was my missing point. Applied.

Thanks,
Inki Dae

> -----Original Message-----
> From: Sachin Kamat [mailto:sachin.kamat at linaro.org]
> Sent: Friday, November 23, 2012 12:42 PM
> To: dri-devel at lists.freedesktop.org
> Cc: inki.dae at samsung.com; jy0922.shim at samsung.com; airlied at linux.ie;
> sachin.kamat at linaro.org; patches at linaro.org
> Subject: [PATCH 5/5] drm/exynos: Fix potential NULL pointer dereference
> 
> Pointer was being dereferenced after freeing.
> 
> Fixes the following error:
> drivers/gpu/drm/exynos/exynos_drm_g2d.c:323 g2d_userptr_put_dma_addr()
> error:
> dereferencing freed memory 'g2d_userptr'
> 
> Signed-off-by: Sachin Kamat <sachin.kamat at linaro.org>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_g2d.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
> b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
> index c1054cb..6ffa076 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
> @@ -319,8 +319,8 @@ out:
>  	g2d_userptr->sgt = NULL;
> 
>  	kfree(g2d_userptr->pages);
> -	kfree(g2d_userptr);
>  	g2d_userptr->pages = NULL;
> +	kfree(g2d_userptr);
>  	g2d_userptr = NULL;
>  }
> 
> --
> 1.7.4.1