ath9k: use pci_dev->subsystem_device

The driver reads PCI subsystem ID from the PCI configuration register while it's
already stored by the PCI subsystem in the 'subsystem_device' field of 'struct
pci_dev'...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index be4ea1329813..839df305348e 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -156,7 +156,6 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         struct ath_softc *sc;
         struct ieee80211_hw *hw;
         u8 csz;
-        u16 subsysid;
         u32 val;
         int ret = 0;
         char hw_name[64];
@@ -250,8 +249,8 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
         sc->irq = pdev->irq;
 
-        pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsysid);
-        ret = ath9k_init_device(id->device, sc, subsysid, &ath_pci_bus_ops);
+        ret = ath9k_init_device(id->device, sc, pdev->subsystem_device,
+                                &ath_pci_bus_ops);
         if (ret) {
                 dev_err(&pdev->dev, "Failed to initialize device\n");
                 goto err_init;