1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index 91cd2f52e628..fba64d39ba19 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -788,6 +788,7 @@ static int netdev_open(struct net_device *dev)
 {
         struct netdev_private *np = netdev_priv(dev);
         void __iomem *ioaddr = np->base;
+        unsigned long flags;
         int i;
 
         /* Do we need to reset the chip??? */
@@ -832,6 +833,10 @@ static int netdev_open(struct net_device *dev)
                 iowrite8(0x01, ioaddr + DebugCtrl1);
         netif_start_queue(dev);
 
+        spin_lock_irqsave(&np->lock, flags);
+        reset_tx(dev);
+        spin_unlock_irqrestore(&np->lock, flags);
+
         iowrite16 (StatsEnable | RxEnable | TxEnable, ioaddr + MACCtrl1);
 
         if (netif_msg_ifup(np))
@@ -1651,6 +1656,9 @@ static int netdev_close(struct net_device *dev)
         /* Disable interrupts by clearing the interrupt mask. */
         iowrite16(0x0000, ioaddr + IntrEnable);
 
+        /* Disable Rx and Tx DMA for safely release resource */
+        iowrite32(0x500, ioaddr + DMACtrl);
+
         /* Stop the chip's Tx and Rx processes. */
         iowrite16(TxDisable | RxDisable | StatsDisable, ioaddr + MACCtrl1);