From 1cc7353dcfe9d4077a5838d6e7c02ceb58e4118d Mon Sep 17 00:00:00 2001
From: Daan De Meyer <daan@amutable.com>
Date: Fri, 3 Apr 2026 22:03:52 +0200
Subject: [PATCH] fd-util: Add missing assert()

---
 src/basic/fd-util.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/basic/fd-util.c b/src/basic/fd-util.c
index b623dc7ff1..c2d46aae15 100644
--- a/src/basic/fd-util.c
+++ b/src/basic/fd-util.c
@@ -167,6 +167,8 @@ int fd_nonblock(int fd, bool nonblock) {
 }
 
 void nonblock_resetp(int *fd) {
+        assert(fd);
+
         PROTECT_ERRNO;
 
         if (*fd >= 0)