From 35093b8a28b62c8d6fa7085aa0e0f4c7b7951655 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Tue, 5 Mar 2013 20:33:41 -0500
Subject: [PATCH] Silence a harmless warning on kernels without the 'path'
 parameter for firmware_class.

---
 modules/services/hardware/udev.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/services/hardware/udev.nix b/modules/services/hardware/udev.nix
index 0921997a5c9e..2ba06b886e42 100644
--- a/modules/services/hardware/udev.nix
+++ b/modules/services/hardware/udev.nix
@@ -233,6 +233,6 @@ in
     boot.extraModprobeConfig = "options firmware_class path=${config.hardware.firmware}";
 
     system.activationScripts."set-firmware-path" =
-      "echo -n ${config.hardware.firmware} > /sys/module/firmware_class/parameters/path";
+      "echo -n ${config.hardware.firmware} 2>/dev/null > /sys/module/firmware_class/parameters/path";
   };
 }