applayer: allow rust parsers to have only one probe

diff --git a/src/app-layer-register.c b/src/app-layer-register.c
index e999c67ef3c4ef46586126e353d3f867583ad5ea..8da006f0f9540ba25e98714d90257c8021221166 100644 (file)
--- a/src/app-layer-register.c
+++ b/src/app-layer-register.c
@@ -54,7 +54,7 @@ AppProto AppLayerRegisterProtocolDetection(const struct AppLayerParser *p, int e
 
     AppLayerProtoDetectRegisterProtocol(alproto, p->name);
 
-    if (p->ProbeTS == NULL || p->ProbeTC == NULL) {
+    if (p->ProbeTS == NULL && p->ProbeTC == NULL) {
         return alproto;
     }