Add a comment so people understand how nice() works...

...and do not make silly changes to it.

1 files changed, 2 insertions, 0 deletions

diff --git a/gpsd.c b/gpsd.c
index a3bc37ef..66464360 100644
--- a/gpsd.c
+++ b/gpsd.c
@@ -1918,6 +1918,8 @@ int main(int argc, char *argv[])
 #ifdef NTPSHM_ENABLE
     if (getuid() == 0) {
 	errno = 0;
+	// nice() can ONLY succeed when run as root!
+	// do not even bother as non-root
 	if (nice(NICEVAL) != -1 || errno == 0)
 	    gpsd_report (2, "Priority setting failed.\n");
 	(void)ntpshm_init(&context, nowait);