From f753d1d50f0cd478b0980b60d1392f12e93788b6 Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Fri, 11 Aug 2023 12:37:51 +0200
Subject: lock: Reset l->writer also for read-write upgradees which are done

---
 kern/lock.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'kern/lock.c')

diff --git a/kern/lock.c b/kern/lock.c
index 43281147..2b86fef8 100644
--- a/kern/lock.c
+++ b/kern/lock.c
@@ -340,9 +340,12 @@ void lock_done(
 	if (l->recursion_depth != 0)
 		l->recursion_depth--;
 	else
-	if (l->want_upgrade)
+	if (l->want_upgrade) {
 	 	l->want_upgrade = FALSE;
-	else {
+#if MACH_LDEBUG
+		l->writer = THREAD_NULL;
+#endif	/* MACH_LDEBUG */
+	} else {
 	 	l->want_write = FALSE;
 #if MACH_LDEBUG
 		l->writer = THREAD_NULL;
-- 
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