PCI hotplug: cpqphp: use pci_dev->subsystem_{vendor|device}

The driver reads PCI subsystem IDs from the PCI configuration registers while
they are already stored by the PCI subsystem in the 'subsystem_{vendor|device}'
fields of 'struct pci_dev'...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 2 insertions, 10 deletions

diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 4952c3b9379d..627274cc571f 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -868,11 +868,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
         /* TODO: This code can be made to support non-Compaq or Intel
          * subsystem IDs
          */
-        rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vid);
-        if (rc) {
-                err("%s : pci_read_config_word failed\n", __func__);
-                goto err_disable_device;
-        }
+        subsystem_vid = pdev->subsystem_vendor;
         dbg("Subsystem Vendor ID: %x\n", subsystem_vid);
         if ((subsystem_vid != PCI_VENDOR_ID_COMPAQ) && (subsystem_vid != PCI_VENDOR_ID_INTEL)) {
                 err(msg_HPC_non_compaq_or_intel);
@@ -887,11 +883,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                 goto err_disable_device;
         }
 
-        rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsystem_deviceid);
-        if (rc) {
-                err("%s : pci_read_config_word failed\n", __func__);
-                goto err_free_ctrl;
-        }
+        subsystem_deviceid = pdev->subsystem_device;
 
         info("Hot Plug Subsystem Device ID: %x\n", subsystem_deviceid);