diff options
Diffstat (limited to 'kernel/irq')
-rw-r--r-- | kernel/irq/manage.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index d64bafb1afd0..0a7840aeb0fb 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c | |||
@@ -491,6 +491,9 @@ int irq_set_irq_wake(unsigned int irq, unsigned int on) | |||
491 | struct irq_desc *desc = irq_get_desc_buslock(irq, &flags); | 491 | struct irq_desc *desc = irq_get_desc_buslock(irq, &flags); |
492 | int ret = 0; | 492 | int ret = 0; |
493 | 493 | ||
494 | if (!desc) | ||
495 | return -EINVAL; | ||
496 | |||
494 | /* wakeup-capable irqs can be shared between drivers that | 497 | /* wakeup-capable irqs can be shared between drivers that |
495 | * don't need to have the same sleep mode behaviors. | 498 | * don't need to have the same sleep mode behaviors. |
496 | */ | 499 | */ |