xen: Use dev_is_pci() to check whether it is pci device

Use PCI standard marco dev_is_pci() instead of directly compare
pci_bus_type to check whether it is pci device.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Jan Beulich <JBeulich@suse.com>

diff --git a/drivers/xen/dbgp.c b/drivers/xen/dbgp.c
index f3ccc80..8145a59 100644 (file)
--- a/drivers/xen/dbgp.c
+++ b/drivers/xen/dbgp.c
@@ -19,7 +19,7 @@ static int xen_dbgp_op(struct usb_hcd *hcd, int op)
        dbgp.op = op;
 
 #ifdef CONFIG_PCI
-       if (ctrlr->bus == &pci_bus_type) {
+       if (dev_is_pci(ctrlr)) {
                const struct pci_dev *pdev = to_pci_dev(ctrlr);
 
                dbgp.u.pci.seg = pci_domain_nr(pdev->bus);