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| author | Ken Kawasaki <ken_kawasaki@spring.nifty.jp> | 2010-07-10 01:18:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-07-12 20:13:02 -0700 |
| commit | ab83a38958ae7e419f18fabe9b2954a6087bfe0d (patch) | |
| tree | 8d12915d385d55c9cef5c0a878eb9ff6da5a8934 | |
| parent | 336a283b9cbe47748ccd68fd8c5158f67cee644b (diff) | |
| download | linux-3.10-ab83a38958ae7e419f18fabe9b2954a6087bfe0d.tar.gz linux-3.10-ab83a38958ae7e419f18fabe9b2954a6087bfe0d.tar.bz2 linux-3.10-ab83a38958ae7e419f18fabe9b2954a6087bfe0d.zip | |
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>
| -rw-r--r-- | drivers/net/pcmcia/axnet_cs.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c index 5b3dfb4ab27..33525bf2a3d 100644 --- 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); } |