Commit 14422f14 authored Feb 27, 2020 by Marco Felsch Committed by Greg Kroah-Hartman Mar 18, 2020

component: allow missing unbind callback

The component framework reuses the devres managed functions. There is no
need to specify an unbind() callback if the driver only wants to release
the devres managed resources. The bind/unbind is like the probe/remove
pair. The bind/probe is necessary and the unbind/remove is optional.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20200227104547.30085-1-m.felsch@pengutronix.de

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 526ee72d

drivers/base/component.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -528,6 +528,7 @@ static void component_unbind(struct component *component,
		{
		WARN_ON(!component->bound);

		if (component->ops && component->ops->unbind)
		component->ops->unbind(component->dev, master->dev, data);
		component->bound = false;