From 4200144489504eeda91e7ba6f91a7fc5119946e2 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Thu, 30 Jan 2025 19:56:30 -0300
Subject: [PATCH] nip60: fix mutex double-lock issue when saving change.

---
 nip60/send.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/nip60/send.go b/nip60/send.go
index 8e85a8f..08e2d25 100644
--- a/nip60/send.go
+++ b/nip60/send.go
@@ -159,9 +159,8 @@ func (w *Wallet) saveChangeAndDeleteUsedTokens(
 		w.wl.PublishUpdate(*changeToken.event, nil, nil, &changeToken, false)
 		w.wl.Unlock()
 
-		w.tokensMu.Lock()
+		// we don't have to lock tokensMu here because this function will always be called with that lock already held
 		w.Tokens = append(updatedTokens, changeToken)
-		w.tokensMu.Unlock()
 	}
 
 	return nil