KVM: s390: kvm/sigp.c: fix memory leakage

the variable inti should be freed in the branch CPUSTAT_STOPPED.
Signed-off-by: Cong Ding <dinggnu@gmail.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>

arch/s390/kvm/sigp.c

@@ -137,8 +137,10 @@ static int __inject_sigp_stop(struct kvm_s390_local_interrupt *li, int action)
 	inti->type = KVM_S390_SIGP_STOP;
 
 	spin_lock_bh(&li->lock);
-	if ((atomic_read(li->cpuflags) & CPUSTAT_STOPPED))
+	if ((atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) {
+		kfree(inti);
 		goto out;
+	}
 	list_add_tail(&inti->list, &li->list);
 	atomic_set(&li->active, 1);
 	atomic_set_mask(CPUSTAT_STOP_INT, li->cpuflags);