[Xen-changelog] [xen-4.1-testing] x86: Check for valid pirq values in hvm_domain_use_pirq

[Xen patchbot-4.1-testing <patchbot@xxxxxxx>]

# HG changeset patch
# User Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
# Date 1305219854 -3600
# Node ID 51ad19c58962e3c5f90a9d96b1d0cd2f4d665631
# Parent  ed630a821de1442270d4f1c4228262e406fdeb2e
x86: Check for valid pirq values in hvm_domain_use_pirq

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
xen-unstable changeset:   23339:f9bb0bbea7c2
xen-unstable date:        Thu May 12 16:42:54 2011 +0100
---


diff -r ed630a821de1 -r 51ad19c58962 xen/arch/x86/irq.c
--- a/xen/arch/x86/irq.c        Thu May 12 18:03:47 2011 +0100
+++ b/xen/arch/x86/irq.c        Thu May 12 18:04:14 2011 +0100
@@ -1871,7 +1871,7 @@
 {
     int emuirq;
     
-    if ( !is_hvm_domain(d) )
+    if ( !is_hvm_domain(d) || pirq < 0 )
         return 0;
 
     emuirq = domain_pirq_to_emuirq(d, pirq);

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