KVM: PPC: Do not create debugfs if fail to create vcpu

If fail to create the vcpu, we should not create the debugfs
for it.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: Alexander Graf <agraf@suse.de>
Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index ace31ca0524..3f8677e9d8f 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -194,7 +194,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
 {
         struct kvm_vcpu *vcpu;
         vcpu = kvmppc_core_vcpu_create(kvm, id);
-        kvmppc_create_vcpu_debugfs(vcpu, id);
+        if (!IS_ERR(vcpu))
+                kvmppc_create_vcpu_debugfs(vcpu, id);
         return vcpu;
 }