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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 5c948177529e281ca7138a1b9bd7ef0186f4cec9..bc79ab00536f7edcbdef8e356df49eeef99ef959 100644 (file)
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -71,6 +71,7 @@ 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;