am 774abe7b: Cherry-pick 49f1857d from master. do not merge.

* commit '774abe7b7e463436107545250aa573c99e246a86':
  Cherry-pick 49f1857d from master. do not merge.
diff --git a/adb/sockets.c b/adb/sockets.c
index 43925e4..e3cea35 100644
--- a/adb/sockets.c
+++ b/adb/sockets.c
@@ -221,10 +221,12 @@
     if(s->peer) {
         s->peer->peer = 0;
         // tweak to avoid deadlock
-        if (s->peer->close == local_socket_close)
+        if (s->peer->close == local_socket_close) {
             local_socket_close_locked(s->peer);
-        else
+        } else {
             s->peer->close(s->peer);
+        }
+        s->peer = 0;
     }
 
         /* If we are already closing, or if there are no
@@ -756,6 +758,7 @@
     if(s->peer) {
         s->peer->peer = 0;
         s->peer->close(s->peer);
+        s->peer = 0;
     }
     free(s);
 }