Some simple components don't need to do any specific action on
bind to / unbind from a master component.
This patch permits such components to omit the bind/unbind
operations.
Signed-off-by: Jean-Francois Moine <moinejf@xxxxxxx>
---
drivers/base/component.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/base/component.c b/drivers/base/component.c
index c53efe6..0a39d7a 100644
--- a/drivers/base/component.c
+++ b/drivers/base/component.c
@@ -225,7 +225,8 @@ 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->dev, master->dev, data);
component->bound = false;
/* Release all resources claimed in the binding of this component */
@@ -274,7 +275,11 @@ static int component_bind(struct component *component, struct master *master,
dev_dbg(master->dev, "binding %s (ops %ps)\n",
dev_name(component->dev), component->ops);
- ret = component->ops->bind(component->dev, master->dev, data);
+ if (component->ops)
+ ret = component->ops->bind(component->dev, master->dev, data);
+ else
+ ret = 0;
+
if (!ret) {
component->bound = true;
--
1.9.rc1
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