From 18abf7ca0a742fdd5e23e4fbacaaa5bbabe0f546 Mon Sep 17 00:00:00 2001
From: bunnie <bunnie@kosagi.com>
Date: Thu, 14 Jul 2022 03:50:30 +0800
Subject: [PATCH] fix ordering issue in refcount increment for trng

want to add to the reference before claiming, so if
a drop happens while we're claiming we don't get
the connection being destroyed in the race.
---
 services/trng/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/services/trng/src/lib.rs b/services/trng/src/lib.rs
index 9ae3d5575..d67638d96 100644
--- a/services/trng/src/lib.rs
+++ b/services/trng/src/lib.rs
@@ -12,10 +12,10 @@ pub struct Trng {
 }
 impl Trng {
     pub fn new(xns: &xous_names::XousNames) -> Result<Self, xous::Error> {
+        REFCOUNT.fetch_add(1, Ordering::Relaxed);
         let conn = xns
             .request_connection_blocking(api::SERVER_NAME_TRNG)
             .expect("Can't connect to TRNG server");
-        REFCOUNT.fetch_add(1, Ordering::Relaxed);
         Ok(Trng {
             conn,
             error_sid: None,