From cc4cf1da5a68bf4e20f82e97e7dbd4babfad3da1 Mon Sep 17 00:00:00 2001
From: Charles Kerr <charles@charleskerr.com>
Date: Fri, 3 Dec 2021 18:07:17 -0600
Subject: [PATCH] fixup! refactor: use cpputf for utf8 validation and
 conversion (#2251) (#2264)

silence a nullptr-dereference warning
---
 libtransmission/utils.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libtransmission/utils.cc b/libtransmission/utils.cc
index 124fda8de..27d652d90 100644
--- a/libtransmission/utils.cc
+++ b/libtransmission/utils.cc
@@ -788,8 +788,11 @@ bool tr_utf8_validate(std::string_view sv, char const** good_end)
 static char* strip_non_utf8(std::string_view sv)
 {
     char* ret = tr_new(char, std::size(sv) + 1);
-    auto const it = utf8::unchecked::replace_invalid(std::data(sv), std::data(sv) + std::size(sv), ret, '?');
-    *it = '\0';
+    if (ret != nullptr)
+    {
+        auto const it = utf8::unchecked::replace_invalid(std::data(sv), std::data(sv) + std::size(sv), ret, '?');
+        *it = '\0';
+    }
     return ret;
 }