detect/krb5.cname: update buffer initialization logic

src/detect-krb5-cname.c

@@ -56,9 +56,8 @@ static int DetectKrb5CNameSetup(DetectEngineCtx *de_ctx, Signature *s, const cha
 }
 
 static InspectionBuffer *GetKrb5CNameData(DetectEngineThreadCtx *det_ctx,
-        const DetectEngineTransforms *transforms,
-        Flow *_f, const struct Krb5PrincipalNameDataArgs *cbdata,
-        int list_id, bool first)
+        const DetectEngineTransforms *transforms, Flow *_f,
+        const struct Krb5PrincipalNameDataArgs *cbdata, int list_id)
 {
     SCEnter();
 
@@ -66,7 +65,7 @@ static InspectionBuffer *GetKrb5CNameData(DetectEngineThreadCtx *det_ctx,
             InspectionBufferMultipleForListGet(det_ctx, list_id, cbdata->local_id);
     if (buffer == NULL)
         return NULL;
-    if (!first && buffer->inspect != NULL)
+    if (buffer->initialized)
         return buffer;
 
     uint32_t b_len = 0;
@@ -95,8 +94,8 @@ static uint8_t DetectEngineInspectKrb5CName(DetectEngineCtx *de_ctx, DetectEngin
 
     while (1) {
         struct Krb5PrincipalNameDataArgs cbdata = { local_id, txv, };
-        InspectionBuffer *buffer = GetKrb5CNameData(det_ctx,
-                transforms, f, &cbdata, engine->sm_list, false);
+        InspectionBuffer *buffer =
+                GetKrb5CNameData(det_ctx, transforms, f, &cbdata, engine->sm_list);
 
         if (buffer == NULL || buffer->inspect == NULL)
             break;
@@ -149,8 +148,7 @@ static void PrefilterTxKrb5CName(DetectEngineThreadCtx *det_ctx, const void *pec
         // loop until we get a NULL
 
         struct Krb5PrincipalNameDataArgs cbdata = { local_id, txv };
-        InspectionBuffer *buffer = GetKrb5CNameData(det_ctx, ctx->transforms,
-                f, &cbdata, list_id, true);
+        InspectionBuffer *buffer = GetKrb5CNameData(det_ctx, ctx->transforms, f, &cbdata, list_id);
         if (buffer == NULL)
             break;