[RFC 3/3] drm/amd: Return -EBUSY for amdgpu_pmops_thaw() on success

["Mario Limonciello (AMD)" <superm1@kernel.org>]

From: Mario Limonciello <mario.limonciello@amd.com>

The PM core should be notified that thaw was skipped for the device
so that if it's tried to be resumed (such as an aborted hibernate)
that it gets another chance to resume.

Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 61268aa82df4d..d40af069f24dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -2681,7 +2681,7 @@ static int amdgpu_pmops_thaw(struct device *dev)
 
 	/* do not resume device if it's normal hibernation */
 	if (!pm_hibernate_is_recovering() && !pm_hibernation_mode_is_suspend())
-		return 0;
+		return -EBUSY;
 
 	return amdgpu_device_resume(drm_dev, true);
 }
-- 
2.43.0