Commit 059e3df7 authored May 06, 2015 by Badhri Jagan Sridharan

usb: gadget: Do not disconnect unregistered dev



configfs_composite_unbind sets the gadget data
to null. Therefore, add check in disconnect
function to make sure that cdev is not NULL.
Prints a WARN message if the driver tries to
redundantly disconnect a gadget.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Change-Id: I248cb7175d0dd9a51c18053dd39475d8b3284f6d

parent 858c4e49

drivers/usb/gadget/composite.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1781,6 +1781,12 @@ void composite_disconnect(struct usb_gadget *gadget)
		struct usb_composite_dev *cdev = get_gadget_data(gadget);
		unsigned long flags;

		if (cdev == NULL) {
		WARN(1, "%s: Calling disconnect on a Gadget that is \
		not connected\n", __func__);
		return;
		}

		/* REVISIT: should we have config and device level
		* disconnect callbacks?
		*/