diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 76c6615..89f283c 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -2035,19 +2035,27 @@
 
 	ipxitf_cleanup();
 
-	unregister_snap_client(pSNAP_datalink);
-	pSNAP_datalink = NULL;
+	if (pSNAP_datalink) {
+		unregister_snap_client(pSNAP_datalink);
+		pSNAP_datalink = NULL;
+	}
 
-	unregister_8022_client(p8022_datalink);
-	p8022_datalink = NULL;
+	if (p8022_datalink) {
+		unregister_8022_client(p8022_datalink);
+		p8022_datalink = NULL;
+	}
 
 	dev_remove_pack(&ipx_8023_packet_type);
-	destroy_8023_client(p8023_datalink);
-	p8023_datalink = NULL;
+	if (p8023_datalink) {
+		destroy_8023_client(p8023_datalink);
+		p8023_datalink = NULL;
+	}
 
 	dev_remove_pack(&ipx_dix_packet_type);
-	destroy_EII_client(pEII_datalink);
-	pEII_datalink = NULL;
+	if (pEII_datalink) {
+		destroy_EII_client(pEII_datalink);
+		pEII_datalink = NULL;
+	}
 
 	proto_unregister(&ipx_proto);
 	sock_unregister(ipx_family_ops.family);