From: Karel Zak <kzak@redhat.com>
Date: Wed, 19 Dec 2012 11:56:39 +0000 (+0100)
Subject: libblkid: improve test_blkid_devno, fix compiler warning [-Wunused-result]
X-Git-Tag: v2.23-rc1~398
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1c3f44f7b8df7e52bc2a6b589d598d38bf7d59b2;p=thirdparty%2Futil-linux.git

libblkid: improve test_blkid_devno, fix compiler warning [-Wunused-result]

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

diff --git a/libblkid/src/devno.c b/libblkid/src/devno.c
index e7b254cfad..c54903566f 100644
--- a/libblkid/src/devno.c
+++ b/libblkid/src/devno.c
@@ -370,7 +370,9 @@ int main(int argc, char** argv)
 	free(devname);
 
 	printf("Looking for whole-device for 0x%04llx\n", (long long)devno);
-	blkid_devno_to_wholedisk(devno, diskname, sizeof(diskname), &disk_devno);
+	if (blkid_devno_to_wholedisk(devno, diskname,
+				sizeof(diskname), &disk_devno) == 0)
+		printf("found devno 0x%04llx as /dev/%s\n", (long long) disk_devno, diskname);
 
 	return 0;
 }