From 06d98bdc81b233584d4b225892d358f324b7030b Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Fri, 11 Sep 2020 17:44:20 +0900
Subject: [PATCH] backlight: do not claim that ID_BACKLIGHT_CLAMP= property is
 not set

---
 src/backlight/backlight.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/backlight/backlight.c b/src/backlight/backlight.c
index 215b3bbfe4..fa75b04879 100644
--- a/src/backlight/backlight.c
+++ b/src/backlight/backlight.c
@@ -309,7 +309,8 @@ static bool shall_clamp(sd_device *d) {
 
         r = sd_device_get_property_value(d, "ID_BACKLIGHT_CLAMP", &s);
         if (r < 0) {
-                log_device_debug_errno(d, r, "Failed to get ID_BACKLIGHT_CLAMP property, ignoring: %m");
+                if (r != -ENOENT)
+                        log_device_debug_errno(d, r, "Failed to get ID_BACKLIGHT_CLAMP property, ignoring: %m");
                 return true;
         }