From 8528b0f1de1101c6002036fd53638fb21111d0ea Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 23 Jan 2007 14:16:31 -0800 Subject: [PATCH] Clear spurious irq stat information when adding irq handler Any newly added irq handler may obviously make any old spurious irq status invalid, since the new handler may well be the thing that is supposed to handle any interrupts that came in. So just clear the statistics when adding handlers. Pointed-out-by: Alan Cox Acked-by: Thomas Gleixner Acked-by: Ingo Molnar Signed-off-by: Linus Torvalds --- kernel/irq/manage.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index b385878c6e..8b961adc3b 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -315,6 +315,9 @@ int setup_irq(unsigned int irq, struct irqaction *new) /* Undo nested disables: */ desc->depth = 1; } + /* Reset broken irq detection when installing new handler */ + desc->irq_count = 0; + desc->irqs_unhandled = 0; spin_unlock_irqrestore(&desc->lock, flags); new->irq = irq; -- 2.39.5