linux-kernel - [PATCH 12/18] xen: initialize irq 0 too

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Date:	Thu,  7 May 2009 14:14:37 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Xen-devel <xen-devel@...ts.xensource.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
Subject: [PATCH 12/18] xen: initialize irq 0 too

From: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>

Impact: theoretical bugfix, cleanup

IRQ 0 is valid, so make sure it gets initialized properly too.
(Though in practice it doesn't matter, because its the timer
interrupt we don't use.)

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
 arch/x86/xen/pci.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/xen/pci.c b/arch/x86/xen/pci.c
index f55532d..502ff5f 100644
--- a/arch/x86/xen/pci.c
+++ b/arch/x86/xen/pci.c
@@ -52,7 +52,7 @@ int xen_register_gsi(u32 gsi, int triggering, int polarity)
 
 	printk(KERN_DEBUG "xen: --> irq=%d\n", irq);
 
-	if (irq > 0)
+	if (irq >= 0)
 		xen_set_io_apic_routing(irq,
 					triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
 					polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
-- 
1.6.0.6

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