From c7c4aad38740b71b7e8a72321ce524fb2d07c4ab Mon Sep 17 00:00:00 2001
From: ZyX <kp-pav@yandex.ru>
Date: Sat, 20 May 2017 04:35:42 +0300
Subject: [PATCH] tag: Silence V522: potential null dereference

Call PVS is referring to is using DT_FREE which will make function exit earlier,
in #ifdef EXITFREE block.
---
 src/nvim/tag.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/nvim/tag.c b/src/nvim/tag.c
index b8b86bf979..88b45add54 100644
--- a/src/nvim/tag.c
+++ b/src/nvim/tag.c
@@ -208,10 +208,9 @@ do_tag (
   clearpos(&saved_fmark.mark);          /* shutup gcc 4.0 */
   saved_fmark.fnum = 0;
 
-  /*
-   * Don't add a tag to the tagstack if 'tagstack' has been reset.
-   */
-  if (!p_tgst && *tag != NUL) {
+  // Don't add a tag to the tagstack if 'tagstack' has been reset.
+  assert(tag != NULL);
+  if (!p_tgst && *tag != NUL) {  // -V522
     use_tagstack = false;
     new_tag = true;
     if (g_do_tagpreview != 0) {