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-rw-r--r--drivers/staging/greybus/control.c13
-rw-r--r--drivers/staging/greybus/interface.c6
2 files changed, 12 insertions, 7 deletions
diff --git a/drivers/staging/greybus/control.c b/drivers/staging/greybus/control.c
index 58a3d60..20aa366 100644
--- a/drivers/staging/greybus/control.c
+++ b/drivers/staging/greybus/control.c
@@ -257,23 +257,26 @@ struct device_type greybus_control_type = {
struct gb_control *gb_control_create(struct gb_interface *intf)
{
+ struct gb_connection *connection;
struct gb_control *control;
control = kzalloc(sizeof(*control), GFP_KERNEL);
if (!control)
- return NULL;
+ return ERR_PTR(-ENOMEM);
control->intf = intf;
- control->connection = gb_connection_create_control(intf);
- if (IS_ERR(control->connection)) {
+ connection = gb_connection_create_control(intf);
+ if (IS_ERR(connection)) {
dev_err(&intf->dev,
"failed to create control connection: %ld\n",
- PTR_ERR(control->connection));
+ PTR_ERR(connection));
kfree(control);
- return NULL;
+ return ERR_CAST(connection);
}
+ control->connection = connection;
+
control->dev.parent = &intf->dev;
control->dev.bus = &greybus_bus_type;
control->dev.type = &greybus_control_type;
diff --git a/drivers/staging/greybus/interface.c b/drivers/staging/greybus/interface.c
index ed56f2d..f627112 100644
--- a/drivers/staging/greybus/interface.c
+++ b/drivers/staging/greybus/interface.c
@@ -381,6 +381,7 @@ struct device_type greybus_interface_type = {
struct gb_interface *gb_interface_create(struct gb_host_device *hd,
u8 interface_id)
{
+ struct gb_control *control;
struct gb_interface *intf;
intf = kzalloc(sizeof(*intf), GFP_KERNEL);
@@ -403,11 +404,12 @@ struct gb_interface *gb_interface_create(struct gb_host_device *hd,
device_initialize(&intf->dev);
dev_set_name(&intf->dev, "%d-%d", hd->bus_id, interface_id);
- intf->control = gb_control_create(intf);
- if (!intf->control) {
+ control = gb_control_create(intf);
+ if (IS_ERR(control)) {
put_device(&intf->dev);
return NULL;
}
+ intf->control = control;
list_add(&intf->links, &hd->interfaces);
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