Fix write-only use of a few variables

Since the invention of read-only memory, write-only memory has been
considered deprecated. Where appropriate, either make use of the
value, or avoid writing it, to make it clear that it is not used.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/hostname/hostnamectl.c b/src/hostname/hostnamectl.c
index 66015c2f4c..c6d72b5417 100644
--- a/src/hostname/hostnamectl.c
+++ b/src/hostname/hostnamectl.c
@@ -110,6 +110,8 @@ static void print_status_info(StatusInfo *i) {
                            "PRETTY_NAME", &pretty_name,
                            "CPE_NAME", &cpe_name,
                            NULL);
+        if (r < 0)
+                log_warning("Failed to read /etc/os-release: %s", strerror(-r));
 
         if (!isempty(pretty_name))
                 printf("  Operating System: %s\n", pretty_name);