This is a note to let you know that I've just added the patch titled

drm/amdgpu: fix unload driver issue for virtual display

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: drm-amdgpu-fix-unload-driver-issue-for-virtual-display.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Wed Dec 6 17:39:55 CET 2017

From: Xiangliang Yu Xiangliang.Yu@amd.com Date: Thu, 19 Jan 2017 09:57:41 +0800 Subject: drm/amdgpu: fix unload driver issue for virtual display

From: Xiangliang Yu Xiangliang.Yu@amd.com

[ 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 --- drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c @@ -565,11 +565,8 @@ static const struct drm_encoder_helper_f

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 = {

Patches currently in stable-queue which might be from Xiangliang.Yu@amd.com are

queue-4.9/drm-amdgpu-fix-unload-driver-issue-for-virtual-display.patch