diff options
Diffstat (limited to 'arch/arm/mach-sa1100')
| -rw-r--r-- | arch/arm/mach-sa1100/neponset.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c index 9e02bc3712a0..af6d2775cf82 100644 --- a/arch/arm/mach-sa1100/neponset.c +++ b/arch/arm/mach-sa1100/neponset.c @@ -59,6 +59,14 @@ neponset_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *reg if (irr & (IRR_ETHERNET | IRR_USAR)) { desc->chip->mask(irq); + /* + * Ack the interrupt now to prevent re-entering + * this neponset handler. Again, this is safe + * since we'll check the IRR register prior to + * leaving. + */ + desc->chip->ack(irq); + if (irr & IRR_ETHERNET) { d = irq_desc + IRQ_NEPONSET_SMC9196; desc_handle_irq(IRQ_NEPONSET_SMC9196, d, regs); |