Messages in this thread Patch in this message | | | From | Marco Felsch <> | Subject | [PATCH] component: allow missing unbind callback | Date | Thu, 27 Feb 2020 11:45:47 +0100 |
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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> --- drivers/base/component.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/base/component.c b/drivers/base/component.c index c7879f5ae2fb..e97704104784 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -528,7 +528,8 @@ static void component_unbind(struct component *component, { WARN_ON(!component->bound); - component->ops->unbind(component->dev, master->dev, data); + if (component->ops && component->ops->unbind) + component->ops->unbind(component->dev, master->dev, data); component->bound = false; /* Release all resources claimed in the binding of this component */ -- 2.20.1
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