From: Karel Zak <kzak@redhat.com>
Date: Mon, 18 Feb 2019 11:34:11 +0000 (+0100)
Subject: libfdisk: use list_add_tail() in more robust way
X-Git-Tag: v2.34-rc1~107
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1882b3a617e3e609021297cb6e35eb726ae73d33;p=thirdparty%2Futil-linux.git

libfdisk: use list_add_tail() in more robust way

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

diff --git a/libfdisk/src/table.c b/libfdisk/src/table.c
index 4881db68e2..7718daebba 100644
--- a/libfdisk/src/table.c
+++ b/libfdisk/src/table.c
@@ -225,6 +225,9 @@ int fdisk_table_add_partition(struct fdisk_table *tb, struct fdisk_partition *pa
 	if (!tb || !pa)
 		return -EINVAL;
 
+	if (!list_empty(&pa->parts))
+		return -EBUSY;
+
 	fdisk_ref_partition(pa);
 	list_add_tail(&pa->parts, &tb->parts);
 	tb->nents++;