[PATCH] drm/amdgpu: fix uvd crash on Polaris12 during driver unloading

[Evan Quan]

There was a change(below) target for such issue:
cdccf1ffe1a3 drm/amdgpu: Fix crash on device remove/driver unload
But the fix for VI ASICs was missing there. This is a supplement for
that.

Signed-off-by: Evan Quan <evan.q...@amd.com>
Change-Id: Iedc25e2f572f04772511d56781b01b481e22fd00
---
 drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c 
b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index d5d023a24269..2d558c2f417d 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -534,6 +534,19 @@ static int uvd_v6_0_hw_fini(void *handle)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+       cancel_delayed_work_sync(&adev->uvd.idle_work);
+
+       if (RREG32(mmUVD_STATUS) != 0)
+               uvd_v6_0_stop(adev);
+
+       return 0;
+}
+
+static int uvd_v6_0_suspend(void *handle)
+{
+       int r;
+       struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
        /*
         * Proper cleanups before halting the HW engine:
         *   - cancel the delayed idle work
@@ -558,17 +571,6 @@ static int uvd_v6_0_hw_fini(void *handle)
                                                       AMD_CG_STATE_GATE);
        }
 
-       if (RREG32(mmUVD_STATUS) != 0)
-               uvd_v6_0_stop(adev);
-
-       return 0;
-}
-
-static int uvd_v6_0_suspend(void *handle)
-{
-       int r;
-       struct amdgpu_device *adev = (struct amdgpu_device *)handle;
-
        r = uvd_v6_0_hw_fini(adev);
        if (r)
                return r;
-- 
2.29.0