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authorJohannes Thumshirn <jthumshirn@suse.de>2016-05-03 09:46:22 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-05-03 15:07:35 -0700
commit18d28819809909c3f24bb72183a901c5e332a63d (patch)
tree4a900ad5de38046a5c65967f990d06989a7d7a57 /drivers/mcb/mcb-core.c
parentbc46b45a421a64a0895dd41a34d3d2086e1ac7f6 (diff)
downloadlinux-18d28819809909c3f24bb72183a901c5e332a63d.tar.bz2
mcb: Correctly initialize the bus's device
The mcb bus' device member wasn't correctly initialized and thus wasn't placed correctly into the driver model. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Andreas Werner <andreas.werner@men.de> Tested-by: Andreas Werner <andreas.werner@men.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mcb/mcb-core.c')
-rw-r--r--drivers/mcb/mcb-core.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
index a4be451074e5..1e336cc56751 100644
--- a/drivers/mcb/mcb-core.c
+++ b/drivers/mcb/mcb-core.c
@@ -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);