diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-12-19 00:54:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-15 00:32:16 +0300 |
| commit | f572810877041346667414c2b9cf0e368d575f71 (patch) | |
| tree | 3bfbbed6914387bf2cc44d7186af4980de0746bd /arch/powerpc | |
| parent | 7fe5a37ddec06e9e6544283bd175084b4a827a0f (diff) | |
| download | linux-f572810877041346667414c2b9cf0e368d575f71.tar.xz | |
KVM: PPC: Book3S PR: Free shared page if mmu initialization fails
commit cb10bf9194f4d2c5d830eddca861f7ca0fecdbb4 upstream.
Explicitly free the shared page if kvmppc_mmu_init() fails during
kvmppc_core_vcpu_create(), as the page is freed only in
kvmppc_core_vcpu_free(), which is not reached via kvm_vcpu_uninit().
Fixes: 96bc451a15329 ("KVM: PPC: Introduce shared page")
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>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kvm/book3s_pr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index e2ef16198456..f5bbb188f18d 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -1482,10 +1482,12 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_pr(struct kvm *kvm, err = kvmppc_mmu_init(vcpu); if (err < 0) - goto uninit_vcpu; + goto free_shared_page; return vcpu; +free_shared_page: + free_page((unsigned long)vcpu->arch.shared); uninit_vcpu: kvm_vcpu_uninit(vcpu); free_shadow_vcpu: |