1 files changed, 17 insertions, 14 deletions

diff --git a/drivers/net/ns83820.c b/drivers/net/ns83820.c
index d0ed8646902f..0e76859c90a2 100644
--- a/drivers/net/ns83820.c
+++ b/drivers/net/ns83820.c
@@ -803,7 +803,7 @@ static int ns83820_setup_rx(struct net_device *ndev)
 
                 writel(dev->IMR_cache, dev->base + IMR);
                 writel(1, dev->base + IER);
-                spin_unlock_irq(&dev->misc_lock);
+                spin_unlock(&dev->misc_lock);
 
                 kick_rx(ndev);
 
@@ -1012,8 +1012,6 @@ static void do_tx_done(struct net_device *ndev)
         struct ns83820 *dev = PRIV(ndev);
         u32 cmdsts, tx_done_idx, *desc;
 
-        spin_lock_irq(&dev->tx_lock);
-
         dprintk("do_tx_done(%p)\n", ndev);
         tx_done_idx = dev->tx_done_idx;
         desc = dev->tx_descs + (tx_done_idx * DESC_SIZE);
@@ -1069,7 +1067,6 @@ static void do_tx_done(struct net_device *ndev)
                 netif_start_queue(ndev);
                 netif_wake_queue(ndev);
         }
-        spin_unlock_irq(&dev->tx_lock);
 }
 
 static void ns83820_cleanup_tx(struct ns83820 *dev)
@@ -1281,11 +1278,13 @@ static struct ethtool_ops ops = {
         .get_link = ns83820_get_link
 };
 
+/* this function is called in irq context from the ISR */
 static void ns83820_mib_isr(struct ns83820 *dev)
 {
-        spin_lock(&dev->misc_lock);
+        unsigned long flags;
+        spin_lock_irqsave(&dev->misc_lock, flags);
         ns83820_update_stats(dev);
-        spin_unlock(&dev->misc_lock);
+        spin_unlock_irqrestore(&dev->misc_lock, flags);
 }
 
 static void ns83820_do_isr(struct net_device *ndev, u32 isr);
@@ -1307,6 +1306,8 @@ static irqreturn_t ns83820_irq(int foo, void *data, struct pt_regs *regs)
 static void ns83820_do_isr(struct net_device *ndev, u32 isr)
 {
         struct ns83820 *dev = PRIV(ndev);
+        unsigned long flags;
+
 #ifdef DEBUG
         if (isr & ~(ISR_PHY | ISR_RXDESC | ISR_RXEARLY | ISR_RXOK | ISR_RXERR | ISR_TXIDLE | ISR_TXOK | ISR_TXDESC))
                 Dprintk("odd isr? 0x%08x\n", isr);
@@ -1321,10 +1322,10 @@ static void ns83820_do_isr(struct net_device *ndev, u32 isr)
         if ((ISR_RXDESC | ISR_RXOK) & isr) {
                 prefetch(dev->rx_info.next_rx_desc);
 
-                spin_lock_irq(&dev->misc_lock);
+                spin_lock_irqsave(&dev->misc_lock, flags);
                 dev->IMR_cache &= ~(ISR_RXDESC | ISR_RXOK);
                 writel(dev->IMR_cache, dev->base + IMR);
-                spin_unlock_irq(&dev->misc_lock);
+                spin_unlock_irqrestore(&dev->misc_lock, flags);
 
                 tasklet_schedule(&dev->rx_tasklet);
                 //rx_irq(ndev);
@@ -1370,16 +1371,18 @@ static void ns83820_do_isr(struct net_device *ndev, u32 isr)
          * work has accumulated
          */
         if ((ISR_TXDESC | ISR_TXIDLE | ISR_TXOK | ISR_TXERR) & isr) {
+                spin_lock_irqsave(&dev->tx_lock, flags);
                 do_tx_done(ndev);
+                spin_unlock_irqrestore(&dev->tx_lock, flags);
 
                 /* Disable TxOk if there are no outstanding tx packets.
                  */
                 if ((dev->tx_done_idx == dev->tx_free_idx) &&
                     (dev->IMR_cache & ISR_TXOK)) {
-                        spin_lock_irq(&dev->misc_lock);
+                        spin_lock_irqsave(&dev->misc_lock, flags);
                         dev->IMR_cache &= ~ISR_TXOK;
                         writel(dev->IMR_cache, dev->base + IMR);
-                        spin_unlock_irq(&dev->misc_lock);
+                        spin_unlock_irqrestore(&dev->misc_lock, flags);
                 }
         }
 
@@ -1390,10 +1393,10 @@ static void ns83820_do_isr(struct net_device *ndev, u32 isr)
          * nature are expected, we must enable TxOk.
          */
         if ((ISR_TXIDLE & isr) && (dev->tx_done_idx != dev->tx_free_idx)) {
-                spin_lock_irq(&dev->misc_lock);
+                spin_lock_irqsave(&dev->misc_lock, flags);
                 dev->IMR_cache |= ISR_TXOK;
                 writel(dev->IMR_cache, dev->base + IMR);
-                spin_unlock_irq(&dev->misc_lock);
+                spin_unlock_irqrestore(&dev->misc_lock, flags);
         }
 
         /* MIB interrupt: one of the statistics counters is about to overflow */
@@ -1455,7 +1458,7 @@ static void ns83820_tx_timeout(struct net_device *ndev)
         u32 tx_done_idx, *desc;
         unsigned long flags;
 
-        local_irq_save(flags);
+        spin_lock_irqsave(&dev->tx_lock, flags);
 
         tx_done_idx = dev->tx_done_idx;
         desc = dev->tx_descs + (tx_done_idx * DESC_SIZE);
@@ -1482,7 +1485,7 @@ static void ns83820_tx_timeout(struct net_device *ndev)
                 ndev->name,
                 tx_done_idx, dev->tx_free_idx, le32_to_cpu(desc[DESC_CMDSTS]));
 
-        local_irq_restore(flags);
+        spin_unlock_irqrestore(&dev->tx_lock, flags);
 }
 
 static void ns83820_tx_watch(unsigned long data)