1 files changed, 17 insertions, 3 deletions

diff --git a/chardev/char-socket.c b/chardev/char-socket.c
index 1d455ecca4..daa89fe5d1 100644
--- a/chardev/char-socket.c
+++ b/chardev/char-socket.c
@@ -1126,7 +1126,13 @@ static void char_socket_finalize(Object *obj)
     }
     g_free(s->tls_authz);
     if (s->registered_yank) {
-        yank_unregister_instance(CHARDEV_YANK_INSTANCE(chr->label));
+        /*
+         * In the chardev-change special-case, we shouldn't unregister the yank
+         * instance, as it still may be needed.
+         */
+        if (!chr->handover_yank_instance) {
+            yank_unregister_instance(CHARDEV_YANK_INSTANCE(chr->label));
+        }
     }
 
     qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
@@ -1424,8 +1430,14 @@ static void qmp_chardev_open_socket(Chardev *chr,
         qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS);
     }
 
-    if (!yank_register_instance(CHARDEV_YANK_INSTANCE(chr->label), errp)) {
-        return;
+    /*
+     * In the chardev-change special-case, we shouldn't register a new yank
+     * instance, as there already may be one.
+     */
+    if (!chr->handover_yank_instance) {
+        if (!yank_register_instance(CHARDEV_YANK_INSTANCE(chr->label), errp)) {
+            return;
+        }
     }
     s->registered_yank = true;
 
@@ -1567,6 +1579,8 @@ static void char_socket_class_init(ObjectClass *oc, void *data)
 {
     ChardevClass *cc = CHARDEV_CLASS(oc);
 
+    cc->supports_yank = true;
+
     cc->parse = qemu_chr_parse_socket;
     cc->open = qmp_chardev_open_socket;
     cc->chr_wait_connected = tcp_chr_wait_connected;