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atl1: use spin_trylock_irqsave()

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use the simpler spin_trylock_irqsave() API to get the adapter lock.

[ this is also a fix for -rt where adapter->lock is a sleeping lock. ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Ingo Molnar 2007-07-31 19:07:02 -05:00 committed by Jeff Garzik
parent 092ed997c0
commit 5845b677cf
1 changed files with 1 additions and 3 deletions
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4
drivers/net/atl1/atl1_main.c
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@ -1704,10 +1704,8 @@ static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
}
}
local_irq_save(flags);
if (!spin_trylock(&adapter->lock)) {
if (!spin_trylock_irqsave(&adapter->lock, flags)) {
/* Can't get lock - tell upper layer to requeue */
local_irq_restore(flags);
dev_printk(KERN_DEBUG, &adapter->pdev->dev, "tx locked\n");
return NETDEV_TX_LOCKED;
}