diff options
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index a6230b00c1df..734d87d88eb3 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -859,8 +859,10 @@ static int kvm_s390_vm_set_crypto(struct kvm *kvm, struct kvm_device_attr *attr) mutex_lock(&kvm->lock); switch (attr->attr) { case KVM_S390_VM_CRYPTO_ENABLE_AES_KW: - if (!test_kvm_facility(kvm, 76)) + if (!test_kvm_facility(kvm, 76)) { + mutex_unlock(&kvm->lock); return -EINVAL; + } get_random_bytes( kvm->arch.crypto.crycb->aes_wrapping_key_mask, sizeof(kvm->arch.crypto.crycb->aes_wrapping_key_mask)); @@ -868,8 +870,10 @@ static int kvm_s390_vm_set_crypto(struct kvm *kvm, struct kvm_device_attr *attr) VM_EVENT(kvm, 3, "%s", "ENABLE: AES keywrapping support"); break; case KVM_S390_VM_CRYPTO_ENABLE_DEA_KW: - if (!test_kvm_facility(kvm, 76)) + if (!test_kvm_facility(kvm, 76)) { + mutex_unlock(&kvm->lock); return -EINVAL; + } get_random_bytes( kvm->arch.crypto.crycb->dea_wrapping_key_mask, sizeof(kvm->arch.crypto.crycb->dea_wrapping_key_mask)); @@ -877,16 +881,20 @@ static int kvm_s390_vm_set_crypto(struct kvm *kvm, struct kvm_device_attr *attr) VM_EVENT(kvm, 3, "%s", "ENABLE: DEA keywrapping support"); break; case KVM_S390_VM_CRYPTO_DISABLE_AES_KW: - if (!test_kvm_facility(kvm, 76)) + if (!test_kvm_facility(kvm, 76)) { + mutex_unlock(&kvm->lock); return -EINVAL; + } kvm->arch.crypto.aes_kw = 0; memset(kvm->arch.crypto.crycb->aes_wrapping_key_mask, 0, sizeof(kvm->arch.crypto.crycb->aes_wrapping_key_mask)); VM_EVENT(kvm, 3, "%s", "DISABLE: AES keywrapping support"); break; case KVM_S390_VM_CRYPTO_DISABLE_DEA_KW: - if (!test_kvm_facility(kvm, 76)) + if (!test_kvm_facility(kvm, 76)) { + mutex_unlock(&kvm->lock); return -EINVAL; + } kvm->arch.crypto.dea_kw = 0; memset(kvm->arch.crypto.crycb->dea_wrapping_key_mask, 0, sizeof(kvm->arch.crypto.crycb->dea_wrapping_key_mask)); |