migration/socket: Close the listener at the end

Delay closing the listener until the cleanup hook at the end; mptcp
needs the listener to stay open while the other paths come in.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210421112834.107651-5-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/migration/multifd.c b/migration/multifd.c
index 2e8f001bc0..ab41590e71 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -1166,6 +1166,11 @@ bool multifd_recv_all_channels_created(void)
         return true;
     }
 
+    if (!multifd_recv_state) {
+        /* Called before any connections created */
+        return false;
+    }
+
     return thread_count == qatomic_read(&multifd_recv_state->count);
 }