sky2: Make sure both ports initialize correctly

[sfrench/cifs-2.6.git] / drivers / net / sky2.c

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 00bc65a0aac9e609156cfde1cdd719acb6ca2916..4bb52e9cd371afc58db9e8620bf8a3182643f686 100644 (file)
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -65,8 +65,8 @@
 #define RX_DEF_PENDING         RX_MAX_PENDING
 
 /* This is the worst case number of transmit list elements for a single skb:
-   VLAN + TSO + CKSUM + Data + skb_frags * DMA */
-#define MAX_SKB_TX_LE  (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)
+   VLAN:GSO + CKSUM + Data + skb_frags * DMA */
+#define MAX_SKB_TX_LE  (2 + (sizeof(dma_addr_t)/sizeof(u32))*(MAX_SKB_FRAGS+1))
 #define TX_MIN_PENDING         (MAX_SKB_TX_LE+1)
 #define TX_MAX_PENDING         4096
 #define TX_DEF_PENDING         127
@@ -1567,11 +1567,13 @@ static unsigned tx_le_req(const struct sk_buff *skb)
 {
        unsigned count;
 
-       count = sizeof(dma_addr_t) / sizeof(u32);
-       count += skb_shinfo(skb)->nr_frags * count;
+       count = (skb_shinfo(skb)->nr_frags + 1)
+               * (sizeof(dma_addr_t) / sizeof(u32));
 
        if (skb_is_gso(skb))
                ++count;
+       else if (sizeof(dma_addr_t) == sizeof(u32))
+               ++count;        /* possible vlan */
 
        if (skb->ip_summed == CHECKSUM_PARTIAL)
                ++count;
@@ -4548,16 +4550,18 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
        if (hw->ports > 1) {
                struct net_device *dev1;
 
+               err = -ENOMEM;
                dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default);
-               if (!dev1)
-                       dev_warn(&pdev->dev, "allocation for second device failed\n");
-               else if ((err = register_netdev(dev1))) {
+               if (dev1 && (err = register_netdev(dev1)) == 0)
+                       sky2_show_addr(dev1);
+               else {
                        dev_warn(&pdev->dev,
                                 "register of second port failed (%d)\n", err);
                        hw->dev[1] = NULL;
-                       free_netdev(dev1);
-               } else
-                       sky2_show_addr(dev1);
+                       hw->ports = 1;
+                       if (dev1)
+                               free_netdev(dev1);
+               }
        }
 
        setup_timer(&hw->watchdog_timer, sky2_watchdog, (unsigned long) hw);