From 361e88986f3580a7433a23eec1cf01408e5e3627 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 27 Mar 2019 20:58:34 -0700
Subject: [PATCH] Fix search_regs memory leak when thread destroyed

* src/thread.c (free_search_regs): New function.
(finalize_one_thread): Use it.
---
 src/thread.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/thread.c b/src/thread.c
index 59e5b6617e3..e51d6144347 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -768,9 +768,21 @@ run_thread (void *state)
   return NULL;
 }
 
+static void
+free_search_regs (struct re_registers *regs)
+{
+  if (regs->num_regs != 0)
+    {
+      xfree (regs->start);
+      xfree (regs->end);
+    }
+}
+
 void
 finalize_one_thread (struct thread_state *state)
 {
+  free_search_regs (&state->m_search_regs);
+  free_search_regs (&state->m_saved_search_regs);
   sys_cond_destroy (&state->thread_condvar);
 }
 
-- 
2.39.5