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authorMatt Evans <matt@ozlabs.org>2011-12-06 22:19:42 +0100
committerAvi Kivity <avi@redhat.com>2012-03-05 13:52:38 +0100
commit03cdab5340b423ec88fc18eb158a62a8a7b94d7f (patch)
treed7cc6fe86d754690b28938b933ecc85cee3acb86 /arch/powerpc
parentKVM: PPC: Allow for read-only pages backing a Book3S HV guest (diff)
downloadlinux-03cdab5340b423ec88fc18eb158a62a8a7b94d7f.tar.xz
linux-03cdab5340b423ec88fc18eb158a62a8a7b94d7f.zip
KVM: PPC: Fix vcpu_create dereference before validity check.
Fix usage of vcpu struct before check that it's actually valid. Signed-off-by: Matt Evans <matt@ozlabs.org> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kvm/powerpc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 06e955b5837e..25171037a36c 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -289,9 +289,10 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
{
struct kvm_vcpu *vcpu;
vcpu = kvmppc_core_vcpu_create(kvm, id);
- vcpu->arch.wqp = &vcpu->wq;
- if (!IS_ERR(vcpu))
+ if (!IS_ERR(vcpu)) {
+ vcpu->arch.wqp = &vcpu->wq;
kvmppc_create_vcpu_debugfs(vcpu, id);
+ }
return vcpu;
}