From yami via https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2603 : register the SMB dissector by name.

svn path=/trunk/; revision=25444

epan/dissectors/packet-smb.c

@@ -19182,6 +19182,8 @@ proto_register_smb(void)
 
 	register_init_routine(smb_trans_reassembly_init);
 	smb_tap = register_tap("smb");
+
+	register_dissector("smb", dissect_smb, proto_smb);
 }
 
 void