wgengine/magicsock: synchronize epUpdate cleanup on shutdown.

Signed-off-by: David Anderson <danderson@tailscale.com>
6 years ago · 86baf60bd4
parent 023df9239e
commit 86baf60bd4
1 changed files with 1 additions and 0 deletions
--- a/wgengine/magicsock/magicsock.go
+++ b/wgengine/magicsock/magicsock.go
@ -256,6 +256,7 @@ func (c *Conn) epUpdate(ctx context.Context) {
 		case <-ctx.Done():
 			if lastCancel != nil {
 				lastCancel()
+				<-lastDone
 			}
 			return
 		case <-c.startEpUpdate: