detect/ike.vendor: update buffer initialization logic

src/detect-ike-vendor.c

@@ -56,7 +56,7 @@ static int g_ike_vendor_buffer_id = 0;
 
 static InspectionBuffer *IkeVendorGetData(DetectEngineThreadCtx *det_ctx,
         const DetectEngineTransforms *transforms, Flow *f, struct IkeVendorGetDataArgs *cbdata,
-        int list_id, bool first)
+        int list_id)
 {
     SCEnter();
 
@@ -64,7 +64,7 @@ static InspectionBuffer *IkeVendorGetData(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;
 
     const uint8_t *data;
@@ -98,8 +98,7 @@ static void PrefilterTxIkeVendor(DetectEngineThreadCtx *det_ctx, const void *pec
     uint32_t local_id = 0;
     while (1) {
         struct IkeVendorGetDataArgs cbdata = { local_id, txv };
-        InspectionBuffer *buffer =
+        InspectionBuffer *buffer = IkeVendorGetData(det_ctx, ctx->transforms, f, &cbdata, list_id);
-                IkeVendorGetData(det_ctx, ctx->transforms, f, &cbdata, list_id, true);
         if (buffer == NULL)
             break;
 
@@ -151,7 +150,7 @@ static uint8_t DetectEngineInspectIkeVendor(DetectEngineCtx *de_ctx, DetectEngin
             txv,
         };
         InspectionBuffer *buffer =
-                IkeVendorGetData(det_ctx, transforms, f, &cbdata, engine->sm_list, false);
+                IkeVendorGetData(det_ctx, transforms, f, &cbdata, engine->sm_list);
         if (buffer == NULL || buffer->inspect == NULL)
             break;