From: jsg <jsg@openbsd.org>
Date: Mon, 6 Mar 2023 02:40:58 +0000 (+0000)
Subject: drm/amd/display: Properly reuse completion structure
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=276e652ae50ca1a186be0a1b234901c4057ff9bb;p=openbsd

drm/amd/display: Properly reuse completion structure

From Stylon Wang
118ad80d27d938868299ef184f7483b21f011f0b in linux-6.1.y/6.1.15
0cf8307adbc6beb5ff3b8a76afedc6e4e0b536a9 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index e08b0556d99..0f6d9ba64f0 100644
--- a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10256,6 +10256,7 @@ int amdgpu_dm_process_dmub_aux_transfer_sync(
 	ret = p_notify->aux_reply.length;
 	*operation_result = p_notify->result;
 out:
+	reinit_completion(&adev->dm.dmub_aux_transfer_done);
 	mutex_unlock(&adev->dm.dpia_aux_lock);
 	return ret;
 }
@@ -10283,6 +10284,8 @@ int amdgpu_dm_process_dmub_set_config_sync(
 		*operation_result = SET_CONFIG_UNKNOWN_ERROR;
 	}
 
+	if (!is_cmd_complete)
+		reinit_completion(&adev->dm.dmub_aux_transfer_done);
 	mutex_unlock(&adev->dm.dpia_aux_lock);
 	return ret;
 }