Commit cab00a9c authored Jan 19, 2017 by Xiangliang Yu Committed by Greg Kroah-Hartman Dec 09, 2017

drm/amdgpu: fix unload driver issue for virtual display




[ Upstream commit 3a1d19a29670aa7eb58576a31883d0aa9fb77549 ]

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@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent b75e47cf

drivers/gpu/drm/amd/amdgpu/dce_virtual.c

+1 −4

Original line number	Original line	Diff line number	Diff line
	@@ -565,11 +565,8 @@ static const struct drm_encoder_helper_funcs dce_virtual_encoder_helper_funcs =

	static void dce_virtual_encoder_destroy(struct drm_encoder *encoder)		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);		drm_encoder_cleanup(encoder);
	kfree(amdgpu_encoder);		kfree(encoder);
	}		}

	static const struct drm_encoder_funcs dce_virtual_encoder_funcs = {		static const struct drm_encoder_funcs dce_virtual_encoder_funcs = {