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KVM: fix i8259 oops when no vcpus are online
author
Avi Kivity
<avi@redhat.com>
Tue, 27 Jul 2010 11:51:44 +0000
(14:51 +0300)
committer
Marcelo Tosatti
<mtosatti@redhat.com>
Wed, 8 Sep 2010 17:50:56 +0000
(14:50 -0300)
If there are no vcpus, found will be NULL. Check before doing anything with
it.
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/i8259.c
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diff --git
a/arch/x86/kvm/i8259.c
b/arch/x86/kvm/i8259.c
index 8d10c063d7f207451b087a11a8d7bf0c888f3695..4b7b73ce209894442eddd9df2b8f076408389b12 100644
(file)
--- a/
arch/x86/kvm/i8259.c
+++ b/
arch/x86/kvm/i8259.c
@@
-64,6
+64,9
@@
static void pic_unlock(struct kvm_pic *s)
if (!found)
found = s->kvm->bsp_vcpu;
+ if (!found)
+ return;
+
kvm_vcpu_kick(found);
}
}