From c1f3576e0acddd058552847f0b6665ad8b643a41 Mon Sep 17 00:00:00 2001
From: Karel Zak
Date: Tue, 17 Jan 2012 16:12:04 +0100
Subject: libmount: ignore "defaults" mount option

 ... thanks to regression test!

Signed-off-by: Karel Zak <kzak@redhat.com>
---
 libmount/src/optstr.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libmount/src/optstr.c')

diff --git a/libmount/src/optstr.c b/libmount/src/optstr.c
index 9e98798af..7b1034e5d 100644
--- a/libmount/src/optstr.c
+++ b/libmount/src/optstr.c
@@ -722,7 +722,9 @@ int mnt_optstr_apply_flags(char **optstr, unsigned long flags,
 		char *p;
 
 		for (ent = map; ent && ent->name; ent++) {
-			if ((ent->mask & MNT_INVERT) || (fl & ent->id) != ent->id)
+			if ((ent->mask & MNT_INVERT)
+			    || ent->id == 0
+			    || (fl & ent->id) != ent->id)
 				continue;
 
 			/* don't add options which require values (e.g. offset=%d) */
-- 
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