Be more careful freeing memory in detail reader

diff --git a/src/main/detail.c b/src/main/detail.c
index f03933c..0838f37 100644 (file)
--- a/src/main/detail.c
+++ b/src/main/detail.c
@@ -728,9 +728,13 @@ void detail_free(rad_listen_t *this)
        listen_detail_t *data = this->data;
 
        free(data->filename);
+       data->filename = NULL;
        pairfree(&data->vps);
 
-       if (data->fp != NULL) fclose(data->fp);
+       if (data->fp != NULL) {
+               fclose(data->fp);
+               data->fp = NULL;
+       }
 }