[Xen-changelog] [xen-4.0-testing] x86: fix debug key 'i' handling with no IO-APICs

["Xen patchbot-4.0-testing" <patchbot-4.0-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1284535302 -3600
# Node ID 0ed0ab304bd03164849c9abc75c781e31926ec59
# Parent  86b99b9ad6ef9492b66c98e2377105f3ea584cbf
x86: fix debug key 'i' handling with no IO-APICs

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
xen-unstable changeset:   22157:d4976434b8bb
xen-unstable date:        Wed Sep 15 07:47:54 2010 +0100
---
 xen/arch/x86/io_apic.c |    3 +++
 1 files changed, 3 insertions(+)

diff -r 86b99b9ad6ef -r 0ed0ab304bd0 xen/arch/x86/io_apic.c
--- a/xen/arch/x86/io_apic.c    Wed Sep 15 08:19:58 2010 +0100
+++ b/xen/arch/x86/io_apic.c    Wed Sep 15 08:21:42 2010 +0100
@@ -2457,6 +2457,9 @@ void dump_ioapic_irq_info(void)
     unsigned int irq, pin, printed = 0;
     unsigned long flags;
 
+    if ( !irq_2_pin )
+        return;
+
     for ( irq = 0; irq < nr_irqs_gsi; irq++ )
     {
         entry = &irq_2_pin[irq];

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