void gb_interface_mailbox_event()

in interface.c [206:249]

• 35 lines of code
• 5 McCabe index (conditional complexity)

void gb_interface_mailbox_event(struct gb_interface *intf, u16 result,
				u32 mailbox)
{
	mutex_lock(&intf->mutex);

	if (result) {
		dev_warn(&intf->dev,
			 "mailbox event with UniPro error: 0x%04x\n",
			 result);
		goto err_disable;
	}

	if (mailbox != GB_SVC_INTF_MAILBOX_GREYBUS) {
		dev_warn(&intf->dev,
			 "mailbox event with unexpected value: 0x%08x\n",
			 mailbox);
		goto err_disable;
	}

	if (intf->quirks & GB_INTERFACE_QUIRK_LEGACY_MODE_SWITCH) {
		gb_interface_legacy_mode_switch(intf);
		goto out_unlock;
	}

	if (!intf->mode_switch) {
		dev_warn(&intf->dev, "unexpected mailbox event: 0x%08x\n",
			 mailbox);
		goto err_disable;
	}

	dev_info(&intf->dev, "mode switch detected\n");

	complete(&intf->mode_switch_completion);

out_unlock:
	mutex_unlock(&intf->mutex);

	return;

err_disable:
	gb_interface_disable(intf);
	gb_interface_deactivate(intf);
	mutex_unlock(&intf->mutex);
}