leds: netdev trigger: simplifications from core changes
commitf8112a1de1a728ffef0dd9f6c3005490c5f79ab1
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Mon, 2 Jul 2018 20:05:26 +0000 (2 22:05 +0200)
committerJacek Anaszewski <jacek.anaszewski@gmail.com>
Thu, 5 Jul 2018 21:21:12 +0000 (5 23:21 +0200)
tree2013461f5b4180fc422705ec8220761a967de30e
parent9acc560de2aac73ef99c54f0fdfb86b4684296b5
leds: netdev trigger: simplifications from core changes

The trigger core learned error handling for the activate callback and
can handle device attributes now. This allows simplifying the driver
considerably. Note that .deactivate() is only called when .activate()
succeeded, so the check for trigger_data being non-NULL can go away.
(It was broken before because the core didn't clear .trigger_data, so it
might have been non-NULL even if .activate() failed before.)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
drivers/leds/trigger/ledtrig-netdev.c