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| author | Dmitry Vyukov <dvyukov@google.com> | 2017-01-24 16:06:48 +0300 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-03-20 18:25:05 +0300 |
| commit | 3863dff0c3dd72984395c93b12383b393c5c3989 (patch) | |
| tree | c19ef0756ab2475e3bc5477357db51fcebf5687c /drivers/ptp/ptp_kvm.c | |
| parent | 6c6c5e0311c83ffe75e14260fb83e05e21e1d488 (diff) | |
| download | linux-3863dff0c3dd72984395c93b12383b393c5c3989.tar.xz | |
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