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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>
This commit is contained in:
Ken Kawasaki 2010-07-10 01:18:13 +00:00 committed by David S. Miller
parent 336a283b9c
commit ab83a38958
1 changed files with 4 additions and 3 deletions
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7
drivers/net/pcmcia/axnet_cs.c
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@ -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);
}