From 5c6728fc5ef2f458e733bd94668bcc14944a718d Mon Sep 17 00:00:00 2001
From: Paul Floyd <pjfloyd@wanadoo.fr>
Date: Sat, 17 Feb 2024 18:49:31 +0100
Subject: [PATCH] musl regtest: fix crash in helgrind getaddrinfo

musl doesn't like it if you pass in NULL to freeaddrinfo.
---
 helgrind/tests/getaddrinfo.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/helgrind/tests/getaddrinfo.c b/helgrind/tests/getaddrinfo.c
index 9c9bcc1c5c..fc3b0a9d56 100644
--- a/helgrind/tests/getaddrinfo.c
+++ b/helgrind/tests/getaddrinfo.c
@@ -34,7 +34,11 @@ int main(void) {
     }
     for (i = 0; i < threaddat_size; ++i) {
         pthread_join(threads[i], 0);
-        freeaddrinfo(threaddat[i].res);
+        // musl crashes if you pass a NULL pointer to freeaddrinfo
+        if (threaddat[i].res)
+        {
+            freeaddrinfo(threaddat[i].res);
+        }
     }
     return 0;
 }
-- 
2.47.2