diff options
| author | Sam Ravnborg <sam@mars.ravnborg.org> | 2006-07-03 23:24:23 +0200 |
|---|---|---|
| committer | Sam Ravnborg <sam@mars.ravnborg.org> | 2006-07-03 23:24:23 +0200 |
| commit | 05668381140309088443bf5dc53add4104610fbb (patch) | |
| tree | ed53039717390e1a71ff16209281b1f1c8d3e6be /kernel/irq/chip.c | |
| parent | 34c162f79e374556dd1384437f0dab558b5dc657 (diff) | |
| parent | 29454dde27d8e340bb1987bad9aa504af7081eba (diff) | |
Merge branch 'master' of /home/sam/kernel/linux-2.6/
Diffstat (limited to 'kernel/irq/chip.c')
| -rw-r--r-- | kernel/irq/chip.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 4a0952d9458b..54105bdfe20d 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -462,9 +462,18 @@ __set_irq_handler(unsigned int irq, if (!handle) handle = handle_bad_irq; - if (is_chained && desc->chip == &no_irq_chip) - printk(KERN_WARNING "Trying to install " - "chained interrupt type for IRQ%d\n", irq); + if (desc->chip == &no_irq_chip) { + printk(KERN_WARNING "Trying to install %sinterrupt handler " + "for IRQ%d\n", is_chained ? "chained " : " ", irq); + /* + * Some ARM implementations install a handler for really dumb + * interrupt hardware without setting an irq_chip. This worked + * with the ARM no_irq_chip but the check in setup_irq would + * prevent us to setup the interrupt at all. Switch it to + * dummy_irq_chip for easy transition. + */ + desc->chip = &dummy_irq_chip; + } spin_lock_irqsave(&desc->lock, flags); |