From: Andrey Volk <andywolk@gmail.com>
Date: Sun, 16 Feb 2020 00:06:37 +0000 (+0400)
Subject: [sofia-sip] scan-build: Fix "Called function pointer is null (null dereference)"... 
X-Git-Tag: v1.10.3^2~151^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F374%2Fhead;p=thirdparty%2Ffreeswitch.git

[sofia-sip] scan-build: Fix "Called function pointer is null (null dereference)" in t_filter() of su_taglist.c
---

diff --git a/libs/sofia-sip/libsofia-sip-ua/su/su_taglist.c b/libs/sofia-sip/libsofia-sip-ua/su/su_taglist.c
index 431a2dcb56..27510a4024 100644
--- a/libs/sofia-sip/libsofia-sip-ua/su/su_taglist.c
+++ b/libs/sofia-sip/libsofia-sip-ua/su/su_taglist.c
@@ -485,8 +485,9 @@ tagi_t *t_filter(tagi_t *dst,
     size_t d = 0;
 
     for (f = filter; f; f = t_next(f)) {
-      if (TAG_TYPE_OF(f)->tt_filter)
-	d += (size_t)TAG_TYPE_OF(f)->tt_filter(NULL, f, src, bb);
+      tag_type_t tt_f = TAG_TYPE_OF(f);
+      if (tt_f->tt_filter)
+	d += (size_t)tt_f->tt_filter(NULL, f, src, bb);
       else if (tt == f->t_tag) {
 	d += t_len(src);
 	*bb = (char *)*bb + t_xtra(src, (size_t)*bb);