diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2005-11-05 15:38:13 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-11-05 15:38:13 -0500 |
| commit | 87199134b4a85de56a7508c551ab3b3a3ee35035 (patch) | |
| tree | f7b0d0b4bce377c336a3c8cda0be762d29556cc7 /kernel/irq | |
| parent | ea37ccea66e6bdd9f3571418b6461850088c114e (diff) | |
| parent | 70d9d825e0a5a78ec1dacaaaf5c72ff5b0206fab (diff) | |
Merge branch 'master'
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/handle.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 3ff7b925c387..51df337b37db 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 |