From eccbe858ce6412b96fc7cb32eb23a3592f64e5f6 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Tue, 8 Mar 2016 21:17:20 -0300 Subject: Linux-libre 4.4.4-gnu --- kernel/irq/handle.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'kernel/irq') diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index a302cf9a2..57bff7857 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -138,7 +138,8 @@ irqreturn_t handle_irq_event_percpu(struct irq_desc *desc) unsigned int flags = 0, irq = desc->irq_data.irq; struct irqaction *action = desc->action; - do { + /* action might have become NULL since we dropped the lock */ + while (action) { irqreturn_t res; trace_irq_handler_entry(irq, action); @@ -173,7 +174,7 @@ irqreturn_t handle_irq_event_percpu(struct irq_desc *desc) retval |= res; action = action->next; - } while (action); + } add_interrupt_randomness(irq, flags); -- cgit v1.2.3-54-g00ecf