From: Josh Triplett <josh@joshtriplett.org>
Date: Wed, 12 Mar 2014 04:09:04 +0000 (-0700)
Subject: backlight: Fix copy/paste error printing an unrelated error code
X-Git-Tag: v212~212
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=cddc35f75ecff63b2ffd3f8e4c863d475e7b14ca;p=elogind.git

backlight: Fix copy/paste error printing an unrelated error code

udev_device_get_sysattr_value returns NULL on failure, but doesn't
provide an error code; thus, when printing an error from it, don't print
an unrelated error code from a previous call.
---

diff --git a/src/backlight/backlight.c b/src/backlight/backlight.c
index 86f10cc0c..81470b3f9 100644
--- a/src/backlight/backlight.c
+++ b/src/backlight/backlight.c
@@ -322,7 +322,7 @@ int main(int argc, char *argv[]) {
 
                 value = udev_device_get_sysattr_value(device, "brightness");
                 if (!value) {
-                        log_error("Failed to read system attribute: %s", strerror(-r));
+                        log_error("Failed to read system attribute");
                         return EXIT_FAILURE;
                 }