From 404b6f602a8a0035eb471159f44fdd7fff19cb2e Mon Sep 17 00:00:00 2001
From: Andreas Auernhammer <github@aead.dev>
Date: Mon, 23 Oct 2023 17:46:29 +0200
Subject: [PATCH] review: fix bug in `api.Multicast.Add`

We need to check that the added `io.Writer`
is not nil.

Signed-off-by: Andreas Auernhammer <github@aead.dev>
---
 internal/api/multicast.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/api/multicast.go b/internal/api/multicast.go
index b75276b6..2663484b 100644
--- a/internal/api/multicast.go
+++ b/internal/api/multicast.go
@@ -34,7 +34,7 @@ func (m *Multicast) Num() int {
 // Add adds w to m. Future writes to m will also reach w.
 // If w is already part of m, Add does nothing.
 func (m *Multicast) Add(w io.Writer) {
-	if m == nil {
+	if w == nil {
 		return
 	}