Merge pull request #569 from DejinChen/fix/free_txt_value_len

fix(mdns): free txt value len (IDFGH-12817)

Author: gabsuren

components/mdns/mdns.c

@@ -4739,7 +4739,7 @@ static void _mdns_search_result_add_txt(mdns_search_once_t *search, mdns_txt_ite
         free((char *)(txt[i].value));
     }
     free(txt);
-    free(r->txt_value_len);
+    free(txt_value_len);
 }
 
 /**
@@ -7437,7 +7437,7 @@ static void _mdns_browse_result_add_txt(mdns_browse_t *browse, const char *insta
         free((char *)(txt[i].value));
     }
     free(txt);
-    free(r->txt_value_len);
+    free(txt_value_len);
     return;
 }