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[Xen-devel] [PATCH] Make new PCI device probe work with older hypervisors



Be a bit more forgiving if hyervisor does not implement the
manage_pci_add hypercall.

Signed-off-by: Espen Skoglund <espen.skoglund@xxxxxxxxxxxxx>

--
diff -r bb937c2f7382 drivers/xen/core/pci.c
--- a/drivers/xen/core/pci.c    Fri Jul 04 17:55:07 2008 +0100
+++ b/drivers/xen/core/pci.c    Mon Jul 07 13:34:32 2008 +0100
@@ -19,7 +19,7 @@
        manage_pci.devfn = pci_dev->devfn;
 
        r = HYPERVISOR_physdev_op(PHYSDEVOP_manage_pci_add, &manage_pci);
-       if (r)
+       if (r && r != -ENOSYS)
                return r;
 
        r = pci_bus_probe(dev);

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