vfio/pci: Pass an error object to vfio_intx_enable
Pass an error object to prepare for migration to VFIO-PCI realize. The error object is propagated down to vfio_intx_enable_kvm(). The three other callers, vfio_intx_enable_kvm(), vfio_msi_disable_common() and vfio_pci_post_reset() do not propagate the error and simply call error_reportf_err() with the ERR_PREFIX formatting. Signed-off-by: NEric Auger <eric.auger@redhat.com> Reviewed-by: NMarkus Armbruster <armbru@redhat.com> Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>
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