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 5b3dfb4..33525bf 100644
--- a/drivers/net/pcmcia/axnet_cs.c
+++ b/drivers/net/pcmcia/axnet_cs.c
@@ -1168,6 +1168,7 @@
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 @@
* 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 @@
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 @@
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);
}