From: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr>
Date: Sun, 5 Jan 2020 18:36:07 +0100
'gtp_encap_disable_sock(sk)' handles the case
where sk is NULL, so there
is no need to test it before calling the function.
This saves a few line of code.
Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr>
Applied to net-next.