[Xen-changelog] [xen-4.1-testing] x86: Bail from hpet_disable_legacy_broadcast() if legacy_hpet_event is uninitialised.

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

# HG changeset patch
# User Keir Fraser <keir@xxxxxxx>
# Date 1303823478 -3600
# Node ID 7c7ef1b6f4e571a31f8e9e3be5c30d94a75fe7b2
# Parent  7361cc362d642e73b49c319e2263d6b4fe2fe011
x86: Bail from hpet_disable_legacy_broadcast() if legacy_hpet_event is 
uninitialised.

Signed-off-by: Keir Fraser <keir@xxxxxxx>
---


diff -r 7361cc362d64 -r 7c7ef1b6f4e5 xen/arch/x86/hpet.c
--- a/xen/arch/x86/hpet.c       Mon Apr 25 15:28:33 2011 +0100
+++ b/xen/arch/x86/hpet.c       Tue Apr 26 14:11:18 2011 +0100
@@ -647,6 +647,9 @@
     u32 cfg;
     unsigned long flags;
 
+    if ( !legacy_hpet_event.shift )
+        return;
+
     spin_lock_irqsave(&legacy_hpet_event.lock, flags);
 
     legacy_hpet_event.flags |= HPET_EVT_DISABLE;

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog