From mboxrd@z Thu Jan 1 00:00:00 1970 From: gang.chen.5i5j@gmail.com (Chen Gang) Date: Tue, 02 Dec 2014 04:13:51 +0800 Subject: [PATCH v3] virt: kvm: arm: vgic: Process the failure case when kvm_register_device_ops() fails Message-ID: <547CCBFF.5070605@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org kvm_register_device_ops() may fail, so need process the related failure case. Since it is related with neither vgic_arch_setup() nor on_each_cpu(), can move it before them, then simplify the related failure processing code. Signed-off-by: Chen Gang --- virt/kvm/arm/vgic.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index cf23c13..814cae2 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -2471,13 +2471,20 @@ int kvm_vgic_hyp_init(void) goto out_free_irq; } + ret = kvm_register_device_ops(&kvm_arm_vgic_v2_ops, + KVM_DEV_TYPE_ARM_VGIC_V2); + if (ret) { + __unregister_cpu_notifier(&vgic_cpu_nb); + kvm_err("Cannot register vgic device ops\n"); + goto out_free_irq; + } + /* Callback into for arch code for setup */ vgic_arch_setup(vgic); on_each_cpu(vgic_init_maintenance_interrupt, NULL, 1); - return kvm_register_device_ops(&kvm_arm_vgic_v2_ops, - KVM_DEV_TYPE_ARM_VGIC_V2); + return 0; out_free_irq: free_percpu_irq(vgic->maint_irq, kvm_get_running_vcpus()); -- 1.9.3