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| author | Peter Xu <peterx@redhat.com> | 2017-03-15 16:01:18 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-03-23 19:02:03 +0100 |
| commit | 950712eb8ef03e4a62ac5b3067efde7ec2f8a91e (patch) | |
| tree | bbc3b0839d6f86d70cd604e9e057ed67dddfa059 /arch/x86/kvm/i8259.c | |
| parent | df630b8c1e851b5e265dc2ca9c87222e342c093b (diff) | |
| download | linux-950712eb8ef03e4a62ac5b3067efde7ec2f8a91e.tar.bz2 | |
KVM: x86: check existance before destroy
Mostly used for split irqchip mode. In that case, these two things are
not inited at all, so no need to release.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/kvm/i8259.c')
| -rw-r--r-- | arch/x86/kvm/i8259.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index 73ea24d4f119..047b17a26269 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -657,6 +657,9 @@ void kvm_pic_destroy(struct kvm *kvm) { struct kvm_pic *vpic = kvm->arch.vpic; + if (!vpic) + return; + kvm_io_bus_unregister_dev(vpic->kvm, KVM_PIO_BUS, &vpic->dev_master); kvm_io_bus_unregister_dev(vpic->kvm, KVM_PIO_BUS, &vpic->dev_slave); kvm_io_bus_unregister_dev(vpic->kvm, KVM_PIO_BUS, &vpic->dev_eclr); |