From: Felipe Balbi <balbi@ti.com>
Date: Wed, 17 Jul 2013 08:09:49 +0000 (+0300)
Subject: usb: gadget: udc-core: move sysfs_notify() to a workqueue
X-Git-Tag: v3.12-rc1~186^2~77^2~66
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15;p=pandora-kernel.git

usb: gadget: udc-core: move sysfs_notify() to a workqueue

usb_gadget_set_state() will call sysfs_notify()
which might sleep. Some users might want to call
usb_gadget_set_state() from the very IRQ handler
which actually changes the gadget state.

Instead of having every UDC driver add their own
workqueue for such a simple notification, we're
adding it generically to our struct usb_gadget,
so the details are hidden from all UDC drivers.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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