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authorJeff Garzik <jgarzik@pobox.com>2005-11-05 14:38:55 -0500
committerJeff Garzik <jgarzik@pobox.com>2005-11-05 14:38:55 -0500
commit328198acb7407301ddf6005c0fa1e04bd0c539c8 (patch)
tree9936112bd195bfbaacc9a75f2ea7ff757a2c0546 /kernel/irq
parent9e0cb06b17be7e562cbdaba2768649f025826dc6 (diff)
parentfecb4a0c87c2bcaee1f3cf800126eef752a07ed3 (diff)
downloadop-kernel-dev-328198acb7407301ddf6005c0fa1e04bd0c539c8.zip
op-kernel-dev-328198acb7407301ddf6005c0fa1e04bd0c539c8.tar.gz
Merge branch 'master'
Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/handle.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 3ff7b92..51df337 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -117,14 +117,16 @@ fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs)
/*
* No locking required for CPU-local interrupts:
*/
- desc->handler->ack(irq);
+ if (desc->handler->ack)
+ desc->handler->ack(irq);
action_ret = handle_IRQ_event(irq, regs, desc->action);
desc->handler->end(irq);
return 1;
}
spin_lock(&desc->lock);
- desc->handler->ack(irq);
+ if (desc->handler->ack)
+ desc->handler->ack(irq);
/*
* REPLAY is when Linux resends an IRQ that was dropped earlier
* WAITING is used by probe to mark irqs that are being tested
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