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authorDmitry Vyukov <dvyukov@google.com>2017-01-24 14:06:48 +0100
committerRadim Krčmář <rkrcmar@redhat.com>2017-03-20 16:25:05 +0100
commit3863dff0c3dd72984395c93b12383b393c5c3989 (patch)
treec19ef0756ab2475e3bc5477357db51fcebf5687c /drivers/ptp/ptp_kvm.c
parent6c6c5e0311c83ffe75e14260fb83e05e21e1d488 (diff)
kvm: fix usage of uninit spinlock in avic_vm_destroy()
If avic is not enabled, avic_vm_init() does nothing and returns early. However, avic_vm_destroy() still tries to destroy what hasn't been created. The only bad consequence of this now is that avic_vm_destroy() uses svm_vm_data_hash_lock that hasn't been initialized (and is not meant to be used at all if avic is not enabled). Return early from avic_vm_destroy() if avic is not enabled. It has nothing to destroy. Signed-off-by: Dmitry Vyukov <dvyukov@google.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: David Hildenbrand <david@redhat.com> Cc: kvm@vger.kernel.org Cc: syzkaller@googlegroups.com Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'drivers/ptp/ptp_kvm.c')
0 files changed, 0 insertions, 0 deletions