Re: [PATCH v4 5/5] bus: Make remove callback return void

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On Tue, Jul 13, 2021 at 09:35:22PM +0200, Uwe Kleine-König wrote:
The driver core ignores the return value of this callback because there
is only little it can do when a device disappears.

This is the final bit of a long lasting cleanup quest where several
buses were converted to also return void from their remove callback.
Additionally some resource leaks were fixed that were caused by drivers
returning an error code in the expectation that the driver won't go
away.

With struct bus_type::remove returning void it's prevented that newly
implemented buses return an ignored error code and so don't anticipate
wrong expectations for driver authors.


[...]

diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c
index 784cf0027da3..2682c3df651c 100644
--- a/drivers/firmware/arm_scmi/bus.c
+++ b/drivers/firmware/arm_scmi/bus.c
@@ -116,15 +116,13 @@ static int scmi_dev_probe(struct device *dev)
 	return scmi_drv->probe(scmi_dev);
 }
 
-static int scmi_dev_remove(struct device *dev)
+static void scmi_dev_remove(struct device *dev)
 {
 	struct scmi_driver *scmi_drv = to_scmi_driver(dev->driver);
 	struct scmi_device *scmi_dev = to_scmi_dev(dev);
 
 	if (scmi_drv->remove)
 		scmi_drv->remove(scmi_dev);
-
-	return 0;
 }
 
 static struct bus_type scmi_bus_type = {

Acked-by: Sudeep Holla <sudeep.holla@xxxxxxx>

--
Regards,
Sudeep



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