FAILED: patch "[PATCH] drm/amdgpu: fix warning of drm_mm_clean" failed to apply to 6.6-stable tree

The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x e7afa85a0d0eba5bf2c0a446ff622ebdbc9812d6
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2025042228-nutlike-rectify-b5ec@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From e7afa85a0d0eba5bf2c0a446ff622ebdbc9812d6 Mon Sep 17 00:00:00 2001
From: ZhenGuo Yin <[email protected]>
Date: Tue, 8 Apr 2025 16:18:28 +0800
Subject: [PATCH] drm/amdgpu: fix warning of drm_mm_clean
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Kernel doorbell BOs needs to be freed before ttm_fini.

index b34b915203f2..7f354cd532dc 100644
@@ -3510,6 +3510,7 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
 			amdgpu_device_mem_scratch_fini(adev);
 			amdgpu_ib_pool_fini(adev);
 			amdgpu_seq64_fini(adev);
+			amdgpu_doorbell_fini(adev);
 		}
 		if (adev->ip_blocks[i].version->funcs->sw_fini) {
 			r = adev->ip_blocks[i].version->funcs->sw_fini(&adev->ip_blocks[i]);

@@ -4858,7 +4859,6 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev)
 
 		iounmap(adev->rmmio);
 		adev->rmmio = NULL;
-		amdgpu_doorbell_fini(adev);
 		drm_dev_exit(idx);
 	}