From 98acf192dfcde709aeee5eb8cbaea806e84a6d42 Mon Sep 17 00:00:00 2001
From: pixdamix <pixdamix@e8e0d7a0-c8d9-11dd-a880-a1081c7ac358>
Date: Tue, 17 Nov 2009 06:17:42 -0500
Subject: Avoid some warn_unused_result warning

lockf maybe defined with warn_unused_result. Check the return
value to disable the warning (And add an error message by the way)

git-svn-id: http://opkg.googlecode.com/svn/trunk@330 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358
---
diff --git a/libopkg/opkg_conf.c b/libopkg/opkg_conf.c
index cade51a..c69c3d1 100644
--- a/libopkg/opkg_conf.c
+++ b/libopkg/opkg_conf.c
@@ -415,7 +415,12 @@ void opkg_conf_deinit(opkg_conf_t *conf)
      if (&conf->obs_file_hash)
 	            hash_table_deinit(&conf->obs_file_hash);
 
-     lockf(conf->lock_fd, F_ULOCK, 0);
+     /* lockf maybe defined with warn_unused_result */
+     if(lockf(conf->lock_fd, F_ULOCK, 0) != 0){
+              opkg_message(conf, OPKG_DEBUG, "%s: unlock failed: %s\n",
+                              __FUNCTION__, 
+                              strerror(errno));
+     }
      close(conf->lock_fd);
 }
 
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