FAILED: patch "[PATCH] drm/i915/gvt: Add missing vfio_unregister_group_dev() call" failed to apply to 5.19-stable tree

The patch below does not apply to the 5.19-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]>.

Possible dependencies:

f423fa1bc9fe ("drm/i915/gvt: Add missing vfio_unregister_group_dev() call") a5ddd2a99a7a ("drm/i915/gvt: Use the new device life cycle helpers")

thanks,

greg k-h

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

From f423fa1bc9fe1978e6b9f54927411b62cb43eb04 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <[email protected]>
Date: Thu, 29 Sep 2022 14:48:35 -0300
Subject: [PATCH] drm/i915/gvt: Add missing vfio_unregister_group_dev() call

When converting to directly create the vfio_device the mdev driver has to put a vfio_register_emulated_iommu_dev() in the probe() and a pairing vfio_unregister_group_dev() in the remove.

This was missed for gvt, add it.

index 41bba40feef8..9003145adb5a 100644
@@ -1615,6 +1615,7 @@ static void intel_vgpu_remove(struct mdev_device *mdev)
 	if (WARN_ON_ONCE(vgpu->attached))
 		return;
 
+	vfio_unregister_group_dev(&vgpu->vfio_device);
 	vfio_put_device(&vgpu->vfio_device);
 }