NFSv4.2: fix return value of _nfs4_get_security_label()
authorOndrej Mosnacek <omosnace@redhat.com>
Fri, 15 Jan 2021 17:43:56 +0000 (18:43 +0100)
committerAnna Schumaker <Anna.Schumaker@Netapp.com>
Tue, 9 Mar 2021 18:30:39 +0000 (13:30 -0500)
commit53cb245454df5b13d7063162afd7a785aed6ebf2
tree6b7b6063912150a62d55d6b31c15e6ccb28b1475
parentb6f80a2ebb97f184c4679518ac83074598bf9bf4
NFSv4.2: fix return value of _nfs4_get_security_label()

An xattr 'get' handler is expected to return the length of the value on
success, yet _nfs4_get_security_label() (and consequently also
nfs4_xattr_get_nfs4_label(), which is used as an xattr handler) returns
just 0 on success.

Fix this by returning label.len instead, which contains the length of
the result.

Fixes: aa9c2669626c ("NFS: Client implementation of Labeled-NFS")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Reviewed-by: James Morris <jamorris@linux.microsoft.com>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
fs/nfs/nfs4proc.c