From: Sean Christopherson sean.j.christopherson@intel.com
commit 1a978d9d3e72ddfa40ac60d26301b154247ee0bc upstream.
Call kvm_vcpu_uninit() if vcore creation fails to avoid leaking any resources allocated by kvm_vcpu_init(), i.e. the vcpu->run page.
Fixes: 371fefd6f2dc4 ("KVM: PPC: Allow book3s_hv guests to use SMT processor modes") Cc: stable@vger.kernel.org Reviewed-by: Greg Kurz groug@kaod.org Signed-off-by: Sean Christopherson sean.j.christopherson@intel.com Acked-by: Paul Mackerras paulus@ozlabs.org Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/powerpc/kvm/book3s_hv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -1766,7 +1766,7 @@ static struct kvm_vcpu *kvmppc_core_vcpu mutex_unlock(&kvm->lock);
if (!vcore) - goto free_vcpu; + goto uninit_vcpu;
spin_lock(&vcore->lock); ++vcore->num_threads; @@ -1782,6 +1782,8 @@ static struct kvm_vcpu *kvmppc_core_vcpu
return vcpu;
+uninit_vcpu: + kvm_vcpu_uninit(vcpu); free_vcpu: kmem_cache_free(kvm_vcpu_cache, vcpu); out: