usb: udc: allow adding and removing the same gadget device

allow usb_del_gadget_udc() and usb add_gadget_udc() to be called
repeatedly on the same gadget->dev structure.

We need to clear the gadget->dev structure so that kobject_init()
doesn't complain about already initialized object.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index d685d82dcf487c9f53bb3cd821424159d2e445d1..efce68e9a8e038557bdc36c8263bad03cef7e108 100644 (file)
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1273,6 +1273,7 @@ void usb_del_gadget_udc(struct usb_gadget *gadget)
        flush_work(&gadget->work);
        device_unregister(&udc->dev);
        device_unregister(&gadget->dev);
+       memset(&gadget->dev, 0x00, sizeof(gadget->dev));
 }
 EXPORT_SYMBOL_GPL(usb_del_gadget_udc);