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

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1284533274 -3600
# Node ID d4976434b8bba469fd1d337dc16249a5abfc4e5a
# Parent  14ce571d157e060fdb390e70fa8d0c95b2fd9b76
x86: fix debug key 'i' handling with no IO-APICs

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
 xen/arch/x86/io_apic.c |    3 +++
 1 files changed, 3 insertions(+)

diff -r 14ce571d157e -r d4976434b8bb xen/arch/x86/io_apic.c
--- a/xen/arch/x86/io_apic.c    Wed Sep 15 07:45:25 2010 +0100
+++ b/xen/arch/x86/io_apic.c    Wed Sep 15 07:47:54 2010 +0100
@@ -2463,6 +2463,9 @@ 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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