[PATCH blktests v3 1/6] common/xfs: ignore first umount error on _xfs_mkfs_and_mount()

[Luis Chamberlain <mcgrof@kernel.org>]

We want to help capture error messages with _xfs_mkfs_and_mount() on
$FULL, to do that we should avoid spamming error messages for things
which we know are not fatal. Such is the case of when we try to
mkfs a filesystem but before that try to umount the target path.
The first umount is just for sanity, so ignore the error messages from
it.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 common/xfs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/xfs b/common/xfs
index 569770fecd53..67a3b8a97391 100644
--- a/common/xfs
+++ b/common/xfs
@@ -15,7 +15,7 @@ _xfs_mkfs_and_mount() {
 	local mount_dir=$2
 
 	mkdir -p "${mount_dir}"
-	umount "${mount_dir}"
+	umount "${mount_dir}" >/dev/null 2>&1
 	mkfs.xfs -l size=64m -f "${bdev}" || return $?
 	mount "${bdev}" "${mount_dir}"
 }
-- 
2.45.2