KVM: s390: unintended fallthrough for external call

commit f346026e55f1efd3949a67ddd1dcea7c1b9a615e upstream.

We must not fallthrough if the conditions for external call are not met.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 5482d1e..4d576a1 100644 (file)
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -43,6 +43,7 @@ static int __interrupt_is_deliverable(struct kvm_vcpu *vcpu,
                        return 0;
                if (vcpu->arch.sie_block->gcr[0] & 0x2000ul)
                        return 1;
+               return 0;
        case KVM_S390_INT_EMERGENCY:
                if (psw_extint_disabled(vcpu))
                        return 0;