Patch "drm/amdgpu: fix unload driver issue for virtual display" has been added to the 4.9-stable tree

Patch "drm/amdgpu: fix unload driver issue for virtual display" has been added to the 4.9-stable tree

[gregkh]

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;a=summary

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