[PATCH 13/17] xen: initialize irq 0 too

Jeremy Fitzhardinge
2009-05-12T23:29:43Z

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

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 under Xen.)

[ Impact: theoretical bugfix, cleanup ]

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.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 db0c74c..381b7ab 100644
--- a/arch/x86/xen/pci.c
+++ b/arch/x86/xen/pci.c
@@ -53,7 +53,7 @@ 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