ramips: pinctrl: return proper error if pinctrl0 is empty
authorMathias Kresin <dev@kresin.me>
Tue, 25 Jul 2017 18:23:28 +0000 (20:23 +0200)
committerMathias Kresin <dev@kresin.me>
Thu, 27 Jul 2017 07:12:15 +0000 (09:12 +0200)
commita3995a678551c699c9702ed28003c2ba868d2db1
tree209d18f8dbb3fdd133b87aa34f303183d3009aea
parentbf5d32af2a675f7577b388b5eef2a11e6ce042eb
ramips: pinctrl: return proper error if pinctrl0 is empty

Children of the pinctrl0 node are optional. Return EINVAL (=missing)
instead of 0. Fixes a hang if the pinctrl0 has no children.

Signed-off-by: Mathias Kresin <dev@kresin.me>
Acked-by: John Crispin <john@phrozen.org>
target/linux/ramips/patches-4.9/0025-pinctrl-ralink-add-pinctrl-driver.patch