umount.2: ERRORS: add EINVAL for case where mount is locked

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2021-08-13 22:48:41 +02:00
parent 3d892e9692
commit b3987057c6
1 changed files with 5 additions and 0 deletions

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@ -141,6 +141,11 @@ points outside the user address space.
is not a mount point.
.TP
.B EINVAL
.I target
is locked; see
.BR mount_namespaces (7).
.TP
.B EINVAL
.BR umount2 ()
was called with
.B MNT_EXPIRE