KVM: PPC: fix couple of memory leaks in MPIC/XICS devices

XICS failed to free xics structure on error path. MPIC destroy handler
forgot to delete kvm_device structure.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

arch/powerpc/kvm/book3s_xics.c

@@ -1246,8 +1246,10 @@ static int kvmppc_xics_create(struct kvm_device *dev, u32 type)
 		kvm->arch.xics = xics;
 	mutex_unlock(&kvm->lock);
 
-	if (ret)
+	if (ret) {
+		kfree(xics);
 		return ret;
+	}
 
 	xics_debugfs_init(xics);
 

arch/powerpc/kvm/mpic.c

@@ -1635,6 +1635,7 @@ static void mpic_destroy(struct kvm_device *dev)
 
 	dev->kvm->arch.mpic = NULL;
 	kfree(opp);
+	kfree(dev);
 }
 
 static int mpic_set_default_irq_routing(struct openpic *opp)