[PATCH] drm/amdgpu: cancel late_init_work before gpu reset

Pan, Xinhui Xinhui.Pan at amd.com
Fri May 17 03:03:41 UTC 2019


gpu reset will run late_init and schedule the late_init_work.  if we
keep triggering gpu reset in a short time, there are potenial races.

Signed-off-by: xinhui pan <xinhui.pan at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index ecb99aeab6cf..241cd2c75433 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3636,6 +3636,8 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
 
 	dev_info(adev->dev, "GPU reset begin!\n");
 
+	cancel_delayed_work_sync(&adev->late_init_work);
+
 	hive = amdgpu_get_xgmi_hive(adev, false);
 
 	/*
-- 
2.17.1



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