linux-kernel - [PATCH 05/20] KVM: kvm->arch.vioapic should be NULL if kvm_ioapic

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Date:	Wed, 17 Feb 2010 15:45:15 +0200
From:	Avi Kivity <avi@...hat.com>
To:	kvm@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 05/20] KVM: kvm->arch.vioapic should be NULL if kvm_ioapic_init() failure

From: Wei Yongjun <yjwei@...fujitsu.com>

kvm->arch.vioapic should be NULL in case of kvm_ioapic_init() failure
due to cannot register io dev.

Signed-off-by: Wei Yongjun <yjwei@...fujitsu.com>
Signed-off-by: Avi Kivity <avi@...hat.com>
---
 virt/kvm/ioapic.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index a2edfd1..f3d0693 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -393,8 +393,10 @@ int kvm_ioapic_init(struct kvm *kvm)
 	mutex_lock(&kvm->slots_lock);
 	ret = kvm_io_bus_register_dev(kvm, KVM_MMIO_BUS, &ioapic->dev);
 	mutex_unlock(&kvm->slots_lock);
-	if (ret < 0)
+	if (ret < 0) {
+		kvm->arch.vioapic = NULL;
 		kfree(ioapic);
+	}
 
 	return ret;
 }
-- 
1.6.5.3

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