From d322c59e4e4a7c1d0ff4c811573a33eec439a870 Mon Sep 17 00:00:00 2001
From: John Hawthorn <john@hawthorn.email>
Date: Mon, 18 Nov 2024 13:23:54 -0800
Subject: [PATCH] Fix one-time memory leak if encoding_list

We memoize this result after calculating it, and the amount of memory is
tiny, so this shouldn't cause any harm. Still it's good to fix so that
tools can find more serious leaks.

This was found by compiling ruby with ASAN/LSAN and running:

    ASAN_OPTIONS="detect_leaks=1" RUBY_FREE_AT_EXIT=1 bundle exec rake
---
 ext/charlock_holmes/encoding_detector.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ext/charlock_holmes/encoding_detector.c b/ext/charlock_holmes/encoding_detector.c
index 203b110..64127ee 100644
--- a/ext/charlock_holmes/encoding_detector.c
+++ b/ext/charlock_holmes/encoding_detector.c
@@ -350,6 +350,7 @@ static VALUE rb_get_supported_encodings(VALUE klass)
 
 		rb_iv_set(klass, "encoding_list", rb_encoding_list);
 		ucsdet_close(csd);
+		uenum_close(encoding_list);
 	}
 
 	return rb_encoding_list;