tree-wide: make use of log_error_errno() return value

Turns this:

        r = -errno;
        log_error_errno(errno, "foo");

into this:

        r = log_error_errno(errno, "foo");

and this:

        r = log_error_errno(errno, "foo");
        return r;

into this:

        return log_error_errno(errno, "foo");

1 files changed, 1 insertions, 2 deletions

diff --git a/src/core/shutdown.c b/src/core/shutdown.c
index 8a6fd25f31..8cc6efc5b8 100644
--- a/src/core/shutdown.c
+++ b/src/core/shutdown.c
@@ -404,8 +404,7 @@ int main(int argc, char *argv[]) {
                 exit(0);
         }
 
-        log_error_errno(errno, "Failed to invoke reboot(): %m");
-        r = -errno;
+        r = log_error_errno(errno, "Failed to invoke reboot(): %m");
 
   error:
         log_emergency_errno(r, "Critical error while doing system shutdown: %m");