* src/filters/preg.c : append() refactoring

src/filters/preg.c

@@ -95,7 +95,14 @@ append(cfg_t *cfg, const char *pattern) {
   if ((regex = calloc(1, sizeof(rx_t))) == NULL)
     return false;
 
-  if ((ret = regcomp(&regex->regex, buf, flags)) == 0) {
+  if ((ret = regcomp(&regex->regex, buf, flags)) != 0) {
+    char buf[256] = "";
+    regerror(ret, &regex->regex, buf, sizeof(buf));
+    log_msg(cfg, error, "regex compile error: %s", buf);
+    free(regex);
+    return false;
+  }
+
   regex->score = cfg->defscore;
   regex->ftag = fnv_32a_str(pattern, FNV1_32A_INIT);
   strlcpy(regex->pattern, pattern, sizeof(regex->pattern));
@@ -108,14 +115,6 @@ append(cfg_t *cfg, const char *pattern) {
   cfg->rlast = regex;
   cfg->flags |= MOD_IS_READY;
   return true;
-  } else {
-    char buf[256] = "";
-    regerror(ret, &regex->regex, buf, sizeof(buf));
-    log_msg(cfg, error, "regex compile error: %s", buf);
-  }
-
-  free(regex);
-  return false;
 }
 
 uint32_t