[PATCH 1/1] drm/amdgpu: fix unload driver issue for virtual display

[Christian König]

Am 19.01.2017 um 03:03 schrieb Xiangliang Yu:
> Virtual display doesn't allocate amdgpu_encoder when initializing,
> so will get invaild pointer if try to free amdgpu_encoder when
> unloading driver.
>
> Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com>

Acked-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 5 +----
>   1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
> index 64dd266..fc12cdf 100644
> --- a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
> +++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
> @@ -634,11 +634,8 @@ static const struct drm_encoder_helper_funcs dce_virtual_encoder_helper_funcs =
>   
>   static void dce_virtual_encoder_destroy(struct drm_encoder *encoder)
>   {
> -	struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
> -
> -	kfree(amdgpu_encoder->enc_priv);
>   	drm_encoder_cleanup(encoder);
> -	kfree(amdgpu_encoder);
> +	kfree(encoder);
>   }
>   
>   static const struct drm_encoder_funcs dce_virtual_encoder_funcs = {