From: Imre Deak <imre.deak@solidboot.com>
Date: Sat, 16 Sep 2006 19:15:35 +0000 (-0700)
Subject: [PATCH] genirq: fix typo in IRQ resend
X-Git-Tag: v2.6.18~14^2~23
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1ed7ac77b63abb6b3a2c0b4b070f50da5b1fb2f;p=linux-2.6

[PATCH] genirq: fix typo in IRQ resend

Fix a bug where the IRQ_PENDING flag is never cleared and the ISR is called
endlessly without an actual interrupt.

Signed-off-by: Imre Deak <imre.deak@solidboot.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index 872f91ba2c..35f10f7ff9 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -63,8 +63,7 @@ void check_irq_resend(struct irq_desc *desc, unsigned int irq)
 	desc->chip->enable(irq);
 
 	if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) {
-		desc->status &= ~IRQ_PENDING;
-		desc->status = status | IRQ_REPLAY;
+		desc->status = (status & ~IRQ_PENDING) | IRQ_REPLAY;
 
 		if (!desc->chip || !desc->chip->retrigger ||
 					!desc->chip->retrigger(irq)) {