s390/pci: PCI function group 0 is valid for clp_query_pci_fn

The PCI function group 0 is a valid function group,
it is wrong to reject it.

Let's accept PCI function group 0.

Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 21591dd..1a4512c 100644 (file)
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -176,8 +176,7 @@ static int clp_query_pci_fn(struct zpci_dev *zdev, u32 fh)
                rc = clp_store_query_pci_fn(zdev, &rrb->response);
                if (rc)
                        goto out;
-               if (rrb->response.pfgid)
-                       rc = clp_query_pci_fngrp(zdev, rrb->response.pfgid);
+               rc = clp_query_pci_fngrp(zdev, rrb->response.pfgid);
        } else {
                zpci_err("Q PCI FN:\n");
                zpci_err_clp(rrb->response.hdr.rsp, rc);