axnet_cs: use spin_lock_irqsave in ax_interrupt

Use spin_lock_irqsave instead of spin_lock in ax_interrupt because
the interrupt handler can also be invoked from ei_watchdog.

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c
index 5b3dfb4ab27985cd8823c08035dd066da36e4d1c..33525bf2a3d3e87f6769ac24c65861441c375dd3 100644 (file)
--- a/drivers/net/pcmcia/axnet_cs.c
+++ b/drivers/net/pcmcia/axnet_cs.c
@@ -1168,6 +1168,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id)
        int interrupts, nr_serviced = 0, i;
        struct ei_device *ei_local;
        int handled = 0;
+       unsigned long flags;
 
        e8390_base = dev->base_addr;
        ei_local = netdev_priv(dev);
@@ -1176,7 +1177,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id)
         *      Protect the irq test too.
         */
         
-       spin_lock(&ei_local->page_lock);
+       spin_lock_irqsave(&ei_local->page_lock, flags);
 
        if (ei_local->irqlock) 
        {
@@ -1188,7 +1189,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id)
                           dev->name, inb_p(e8390_base + EN0_ISR),
                           inb_p(e8390_base + EN0_IMR));
 #endif
-               spin_unlock(&ei_local->page_lock);
+               spin_unlock_irqrestore(&ei_local->page_lock, flags);
                return IRQ_NONE;
        }
     
@@ -1261,7 +1262,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id)
        ei_local->irqlock = 0;
        outb_p(ENISR_ALL, e8390_base + EN0_IMR);
 
-       spin_unlock(&ei_local->page_lock);
+       spin_unlock_irqrestore(&ei_local->page_lock, flags);
        return IRQ_RETVAL(handled);
 }