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drm/amdgpu: fix unload driver issue for virtual display

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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>
This commit is contained in:
Xiangliang Yu 2017-01-19 09:57:41 +08:00 committed by Alex Deucher
parent c5f21c9f87
commit 3a1d19a296
1 changed files with 1 additions and 4 deletions
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5
drivers/gpu/drm/amd/amdgpu/dce_virtual.c
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@ -627,11 +627,8 @@ 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 = {