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38c24544e1
device_del() destroys the vfio-dev/vfioX under the sysfs for vfio_device. There is no reason to keep it while the device is going to be unregistered. This movement is also a preparation for adding vfio_device cdev. Kernel should remove the cdev node of the vfio_device to avoid new registration refcount increment while the device is going to be unregistered. Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Tested-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Tested-by: Yanting Jiang <yanting.jiang@intel.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Link: https://lore.kernel.org/r/20230718135551.6592-18-yi.l.liu@intel.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>