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authorMarc-André Lureau <marcandre.lureau@redhat.com>2016-02-23 19:10:53 +0100
committerMichael S. Tsirkin <mst@redhat.com>2016-03-11 16:59:12 +0200
commit342f7a9d056d6863475abf35bd4c06bcf1185462 (patch)
tree364c26b24c436b5475ed2a074bc7a165a9ae2c62
parent6167ebbd914229f4ee745576241eaa020cc98239 (diff)
qemu-char: make tcp_chr_disconnect() reentrant-safe
During CHR_EVENT_CLOSED, the function could be reentered, make this case safe. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r--qemu-char.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/qemu-char.c b/qemu-char.c
index 3813efdf19..27fbb440ac 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2769,6 +2769,10 @@ static void tcp_chr_disconnect(CharDriverState *chr)
{
TCPCharDriver *s = chr->opaque;
+ if (!s->connected) {
+ return;
+ }
+
s->connected = 0;
if (s->listen_ioc) {
s->listen_tag = qio_channel_add_watch(