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| author | Wei Yongjun <yjwei@cn.fujitsu.com> | 2010-02-09 02:33:03 (GMT) |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 15:36:10 (GMT) |
| commit | 72bb2fcd23afe8db53b47e8f9edd736c517ba532 (patch) | |
| tree | b79884bcb50077fec7cb5615178cacbbf9e6ce04 /arch | |
| parent | 1ae77badc2504d157800f10a81a58cc9c941e7cb (diff) | |
| download | linux-72bb2fcd23afe8db53b47e8f9edd736c517ba532.tar.xz | |
KVM: cleanup the failure path of KVM_CREATE_IRQCHIP ioctrl
If we fail to init ioapic device or the fail to setup the default irq
routing, the device register by kvm_create_pic() and kvm_ioapic_init()
remain unregister. This patch fixed to do this.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/i8259.c | 11 | ||||
| -rw-r--r-- | arch/x86/kvm/irq.h | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 8 |
3 files changed, 16 insertions, 4 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index d5753a7..a3711f9 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -543,3 +543,14 @@ struct kvm_pic *kvm_create_pic(struct kvm *kvm) return s; } + +void kvm_destroy_pic(struct kvm *kvm) +{ + struct kvm_pic *vpic = kvm->arch.vpic; + + if (vpic) { + kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, &vpic->dev); + kvm->arch.vpic = NULL; + kfree(vpic); + } +} diff --git a/arch/x86/kvm/irq.h b/arch/x86/kvm/irq.h index be399e2..0b71d48 100644 --- a/arch/x86/kvm/irq.h +++ b/arch/x86/kvm/irq.h @@ -75,6 +75,7 @@ struct kvm_pic { }; struct kvm_pic *kvm_create_pic(struct kvm *kvm); +void kvm_destroy_pic(struct kvm *kvm); int kvm_pic_read_irq(struct kvm *kvm); void kvm_pic_update_irq(struct kvm_pic *s); void kvm_pic_clear_isr_ack(struct kvm *kvm); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bd3161c..b2f91b9 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2771,6 +2771,8 @@ long kvm_arch_vm_ioctl(struct file *filp, if (vpic) { r = kvm_ioapic_init(kvm); if (r) { + kvm_io_bus_unregister_dev(kvm, KVM_PIO_BUS, + &vpic->dev); kfree(vpic); goto create_irqchip_unlock; } @@ -2782,10 +2784,8 @@ long kvm_arch_vm_ioctl(struct file *filp, r = kvm_setup_default_irq_routing(kvm); if (r) { mutex_lock(&kvm->irq_lock); - kfree(kvm->arch.vpic); - kfree(kvm->arch.vioapic); - kvm->arch.vpic = NULL; - kvm->arch.vioapic = NULL; + kvm_ioapic_destroy(kvm); + kvm_destroy_pic(kvm); mutex_unlock(&kvm->irq_lock); } create_irqchip_unlock: |