From 484202faab4474c1fbe2acbdd66843fbaec9e885 Mon Sep 17 00:00:00 2001
From: Joseph Koshy <jkoshy@FreeBSD.org>
Date: Wed, 12 Mar 2008 15:51:32 +0000
Subject: [PATCH] Bring the behaviour of pmc_capabilities() and pmc_width() in
 line with documentation: set 'errno' and return -1 in case of an error.

Update (c) years.
---
 lib/libpmc/libpmc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/libpmc/libpmc.c b/lib/libpmc/libpmc.c
index e1ad3ca9985..0075f9d2736 100644
--- a/lib/libpmc/libpmc.c
+++ b/lib/libpmc/libpmc.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2003-2006 Joseph Koshy
+ * Copyright (c) 2003-2008 Joseph Koshy
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1731,7 +1731,8 @@ pmc_capabilities(pmc_id_t pmcid, uint32_t *caps)
 			*caps = cpu_info.pm_classes[i].pm_caps;
 			return (0);
 		}
-	return (EINVAL);
+	errno = EINVAL;
+	return (-1);
 }
 
 int
@@ -2194,7 +2195,8 @@ pmc_width(pmc_id_t pmcid, uint32_t *width)
 			*width = cpu_info.pm_classes[i].pm_width;
 			return (0);
 		}
-	return (EINVAL);
+	errno = EINVAL;
+	return (-1);
 }
 
 int