Fix a potential NULL pointer dereference in write_bulk_callback() in drivers/net...

[linux-2.6] / drivers / net / sky2.c

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index a2f32151559e4e05c56293dd566059e1485419a0..13f08a390e1f599e304b112d10ab428a495958c5 100644 (file)
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -692,6 +692,7 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
 {
        struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
        u16 reg;
+       u32 rx_reg;
        int i;
        const u8 *addr = hw->dev[port]->dev_addr;
 
@@ -768,11 +769,11 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
 
        /* Configure Rx MAC FIFO */
        sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
-       reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
+       rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
        if (hw->chip_id == CHIP_ID_YUKON_EX)
-               reg |= GMF_RX_OVER_ON;
+               rx_reg |= GMF_RX_OVER_ON;
 
-       sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), reg);
+       sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg);
 
        /* Flush Rx MAC FIFO on any flow control or error */
        sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);