diff options
| -rw-r--r-- | kernel/irq/autoprobe.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c index c45ab718cf07..b3a5549ea81e 100644 --- a/kernel/irq/autoprobe.c +++ b/kernel/irq/autoprobe.c @@ -40,6 +40,8 @@ unsigned long probe_irq_on(void) */ for (i = nr_irqs-1; i > 0; i--) { desc = irq_to_desc(i); + if (!desc) + continue; spin_lock_irq(&desc->lock); if (!desc->action && !(desc->status & IRQ_NOPROBE)) { @@ -70,6 +72,8 @@ unsigned long probe_irq_on(void) */ for (i = nr_irqs-1; i > 0; i--) { desc = irq_to_desc(i); + if (!desc) + continue; spin_lock_irq(&desc->lock); if (!desc->action && !(desc->status & IRQ_NOPROBE)) { @@ -93,6 +97,8 @@ unsigned long probe_irq_on(void) unsigned int status; desc = irq_to_desc(i); + if (!desc) + continue; spin_lock_irq(&desc->lock); status = desc->status; @@ -134,6 +140,8 @@ unsigned int probe_irq_mask(unsigned long val) struct irq_desc *desc = irq_to_desc(i); unsigned int status; + if (!desc) + continue; spin_lock_irq(&desc->lock); status = desc->status; @@ -177,6 +185,8 @@ int probe_irq_off(unsigned long val) struct irq_desc *desc = irq_to_desc(i); unsigned int status; + if (!desc) + continue; spin_lock_irq(&desc->lock); status = desc->status; |