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mcb: Correctly initialize the bus's device

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The mcb bus' device member wasn't correctly initialized and thus wasn't placed
correctly into the driver model.

Signed-off-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Andreas Werner <[email protected]>
Tested-by: Andreas Werner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Johannes Thumshirn 2016-05-03 09:46:22 +02:00 • committed by Greg Kroah-Hartman
commit 18d2881980
2 changed files with 18 additions and 6 deletions
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19
drivers/mcb/mcb-core.c
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@ -187,6 +187,7 @@ struct mcb_bus *mcb_alloc_bus(struct device *carrier)
{
struct mcb_bus *bus;
int bus_nr;
int rc;
bus = kzalloc(sizeof(struct mcb_bus), GFP_KERNEL);
if (!bus)
@ -194,14 +195,26 @@ struct mcb_bus *mcb_alloc_bus(struct device *carrier)
bus_nr = ida_simple_get(&mcb_ida, 0, 0, GFP_KERNEL);
if (bus_nr < 0) {
kfree(bus);
return ERR_PTR(bus_nr);
rc = bus_nr;
goto err_free;
}
INIT_LIST_HEAD(&bus->children);
bus->bus_nr = bus_nr;
bus->carrier = carrier;
device_initialize(&bus->dev);
bus->dev.parent = carrier;
bus->dev.bus = &mcb_bus_type;
dev_set_name(&bus->dev, "mcb:%d", bus_nr);
rc = device_add(&bus->dev);
if (rc)
goto err_free;
return bus;
err_free:
kfree(bus);
return ERR_PTR(rc);
}
EXPORT_SYMBOL_GPL(mcb_alloc_bus);