[Qemu-devel] [PATCH RFC 05/14] qemu-char: make tcp_chr_disconnect() reentrant-safe

[marcandre . lureau]

From: Marc-André Lureau <marcandre.lur...@redhat.com>

During CHR_EVENT_CLOSED, the function could be reentered, make this
case safe.

Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
---
 qemu-char.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/qemu-char.c b/qemu-char.c
index d34bfd1..c37a9f9 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2833,6 +2833,10 @@ static void tcp_chr_disconnect(CharDriverState *chr)
 {
     TCPCharDriver *s = chr->opaque;
 
+    if (!s->connected) {
+        return;
+    }
+
     s->connected = 0;
     if (s->listen_chan) {
         s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN,
-- 
2.4.3