diff options
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index ec14dae2f538..d6f0696d98ef 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -641,7 +641,6 @@ static struct kvm *kvm_create_vm(unsigned long type) mutex_init(&kvm->lock); mutex_init(&kvm->irq_lock); mutex_init(&kvm->slots_lock); - refcount_set(&kvm->users_count, 1); INIT_LIST_HEAD(&kvm->devices); BUILD_BUG_ON(KVM_MEM_SLOTS_NUM > SHRT_MAX); @@ -650,7 +649,7 @@ static struct kvm *kvm_create_vm(unsigned long type) struct kvm_memslots *slots = kvm_alloc_memslots(); if (!slots) - goto out_err_no_disable; + goto out_err_no_arch_destroy_vm; /* Generations must be different for each address space. */ slots->generation = i; rcu_assign_pointer(kvm->memslots[i], slots); @@ -660,12 +659,13 @@ static struct kvm *kvm_create_vm(unsigned long type) rcu_assign_pointer(kvm->buses[i], kzalloc(sizeof(struct kvm_io_bus), GFP_KERNEL_ACCOUNT)); if (!kvm->buses[i]) - goto out_err_no_disable; + goto out_err_no_arch_destroy_vm; } + refcount_set(&kvm->users_count, 1); r = kvm_arch_init_vm(kvm, type); if (r) - goto out_err_no_disable; + goto out_err_no_arch_destroy_vm; r = hardware_enable_all(); if (r) @@ -699,7 +699,9 @@ out_err_no_irq_srcu: out_err_no_srcu: hardware_disable_all(); out_err_no_disable: - refcount_set(&kvm->users_count, 0); + kvm_arch_destroy_vm(kvm); + WARN_ON_ONCE(!refcount_dec_and_test(&kvm->users_count)); +out_err_no_arch_destroy_vm: for (i = 0; i < KVM_NR_BUSES; i++) kfree(kvm_get_bus(kvm, i)); for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++) |