[PATCH] drm/amdgpu: Ignore first evction failure during suspend

[xinhui pan]

Some BOs might be in use or locked and then the first eviction's failure
will abort the suspend sequence. We will try to unlock or stop any user
accessing these BOs afterwards during suspend. So only the second
eviction should succeed.

Actaully the first eviction has evicted most BOs, so that should still
work fine in sriov full access mode.

Fixes: 47ea20762bb7 ("drm/amdgpu: Add an extra evict_resource call during device_suspend.")
Signed-off-by: xinhui pan <xinhui.pan at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 5c0e2b766026..f381cb90c964 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -4148,10 +4148,11 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
 
 	adev->in_suspend = true;
 
-	/* Evict the majority of BOs before grabbing the full access */
-	r = amdgpu_device_evict_resources(adev);
-	if (r)
-		return r;
+	/* Try to evict the majority of BOs before grabbing the full access
+	 * Ignore the ret val at first place as we will unlock or stop accessing
+	 * any BOs afterwards.
+	 */
+	(void)amdgpu_device_evict_resources(adev);
 
 	if (amdgpu_sriov_vf(adev)) {
 		amdgpu_virt_fini_data_exchange(adev);
-- 
2.34.1