diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 5c76ed5271bb9f109536cf02f2482d8c0249615b..f8214bbcf5c013163ac6b1781ad924ebacd3b0f6 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -96,7 +96,8 @@ EXPORT_SYMBOL(synchronize_hardirq); * to complete before returning. If you use this function while * holding a resource the IRQ handler may need you will deadlock. * - * This function may be called - with care - from IRQ context. + * Can only be called from preemptible code as it might sleep when + * an interrupt thread is associated to @irq. */ void synchronize_irq(unsigned int irq) {