drm/amdgpu: revise retry init to fully cleanup driver

Retry at drm_dev_register instead of amdgpu_device_init.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Pixel Ding <Pixel.Ding@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 9ed1bee..f55021a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -84,7 +84,7 @@ void amdgpu_driver_unload_kms(struct drm_device *dev)
 int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
 {
 	struct amdgpu_device *adev;
-	int r, acpi_status, retry = 0;
+	int r, acpi_status;
 
 #ifdef CONFIG_DRM_AMDGPU_SI
 	if (!amdgpu_si_support) {
@@ -120,7 +120,6 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
 		}
 	}
 #endif
-retry_init:
 
 	adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
 	if (adev == NULL) {
@@ -143,17 +142,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
 	 * VRAM allocation
 	 */
 	r = amdgpu_device_init(adev, dev, dev->pdev, flags);
-	if (r == -EAGAIN && ++retry <= 3) {
-		adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
-		adev->virt.ops = NULL;
-		amdgpu_device_fini(adev);
-		kfree(adev);
-		dev->dev_private = NULL;
-		/* Don't request EX mode too frequently which is attacking */
-		msleep(5000);
-		dev_err(&dev->pdev->dev, "retry init %d\n", retry);
-		goto retry_init;
-	} else if (r) {
+	if (r) {
 		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
 		goto out;
 	}