rtlwifi: fix for race condition when firmware is cached

[linux-flexiantxendom0-3.2.10.git] / drivers / net / wireless / rtlwifi / pci.c

diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 8a941b5..67f9430 100644 (file)
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -912,8 +912,13 @@ static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
        memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
        ring = &rtlpci->tx_ring[BEACON_QUEUE];
        pskb = __skb_dequeue(&ring->queue);
-       if (pskb)
+       if (pskb) {
+               struct rtl_tx_desc *entry = &ring->desc[ring->idx];
+               pci_unmap_single(rtlpci->pdev, rtlpriv->cfg->ops->get_desc(
+                                (u8 *) entry, true, HW_DESC_TXBUFF_ADDR),
+                                pskb->len, PCI_DMA_TODEVICE);
                kfree_skb(pskb);
+       }
 
        /*NB: the beacon data buffer must be 32-bit aligned. */
        pskb = ieee80211_beacon_get(hw, mac->vif);
@@ -1492,10 +1497,10 @@ static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)
        if (err) {
                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
                         "tx ring initialization failed\n");
-               return 0;
+               return err;
        }
 
-       return 1;
+       return 0;
 }
 
 static int rtl_pci_start(struct ieee80211_hw *hw)
@@ -1846,14 +1851,6 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
        /*like read eeprom and so on */
        rtlpriv->cfg->ops->read_eeprom_info(hw);
 
-       if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
-               RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
-               err = -ENODEV;
-               goto fail3;
-       }
-
-       rtlpriv->cfg->ops->init_sw_leds(hw);
-
        /*aspm */
        rtl_pci_init_aspm(hw);
 
@@ -1866,12 +1863,20 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev,
        }
 
        /* Init PCI sw */
-       err = !rtl_pci_init(hw, pdev);
+       err = rtl_pci_init(hw, pdev);
        if (err) {
                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Failed to init PCI\n");
                goto fail3;
        }
 
+       if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
+               RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
+               err = -ENODEV;
+               goto fail3;
+       }
+
+       rtlpriv->cfg->ops->init_sw_leds(hw);
+
        err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group);
        if (err) {
                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
@@ -1936,6 +1941,7 @@ void rtl_pci_disconnect(struct pci_dev *pdev)
                rtl_deinit_deferred_work(hw);
                rtlpriv->intf_ops->adapter_stop(hw);
        }
+       rtlpriv->cfg->ops->disable_interrupt(hw);
 
        /*deinit rfkill */
        rtl_deinit_rfkill(hw);