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USB: usb peripheral controller driver oops avoidance

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I'm having problem with oopses when rebooting, if I modprobe g_serial
and rmmod g_serial and do a reboot I get an oops in device_shutdown().
The reason seems to be that usb_gadget_unregister_driver() doesn't do
enough cleanup.  With this at91_udc patch I don't get the oops.

Signed-off-by: Patrik Sevallius <patrik.sevallius@enea.com>
[ Same bug was in other peripheral controller drivers; fixed ]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Patrik Sevallius
2007-11-20 09:32:00 -08:00
committed by Greg Kroah-Hartman
parent 7b62cc8668
commit eb0be47dbb
6 changed files with 7 additions and 0 deletions
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drivers/usb/gadget/amd5536udc.c
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@@ -2038,6 +2038,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
spin_unlock_irqrestore(&dev->lock, flags);
driver->unbind(&dev->gadget);
dev->gadget.dev.driver = NULL;
dev->driver = NULL;
/* set SD */