From: Karel Zak <kzak@redhat.com>
Date: Tue, 29 Sep 2009 11:48:16 +0000 (+0200)
Subject: libblkid: fix gcc warning (warn_unused_result)
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5da4239746c11f1f048d03dad1d1a193486f71c8;p=util-linux

libblkid: fix gcc warning (warn_unused_result)

save.c: In function ‘blkid_flush_cache’:
save.c:146: warning: ignoring return value of ‘link’, declared with
attribute warn_unused_result

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/shlibs/blkid/src/save.c b/shlibs/blkid/src/save.c
index bbe6f488..c61373d5 100644
--- a/shlibs/blkid/src/save.c
+++ b/shlibs/blkid/src/save.c
@@ -143,7 +143,11 @@ int blkid_flush_cache(blkid_cache cache)
 			if (backup) {
 				sprintf(backup, "%s.old", filename);
 				unlink(backup);
-				link(filename, backup);
+				if (link(filename, backup)) {
+					DBG(DEBUG_SAVE,
+						printf("can't link %s to %s\n",
+							filename, backup));
+				}
 				free(backup);
 			}
 			rename(opened, filename);