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>

2 files changed, 6 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);
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index 6e219e5c07d2..289270a6aecb 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -635,6 +635,9 @@ void kvm_ioapic_destroy(struct kvm *kvm)
 {
         struct kvm_ioapic *ioapic = kvm->arch.vioapic;
 
+        if (!ioapic)
+                return;
+
         cancel_delayed_work_sync(&ioapic->eoi_inject);
         kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &ioapic->dev);
         kvm->arch.vioapic = NULL;