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usb: musb: gadget: clear gadget_driver when gadget is stopped

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Some musb glue drivers use gadget_driver pointer to know if any gadget
drivers are loaded at some moment and base further decisions on it,
like to do runtime suspend/resume or not. Right now the pointer is
left alone on stop and OMAP musb glue later does wrong runtime_pm
decisions because of it.

Clear the gadget_driver pointer on remove, it's invalid after stop
anyway.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Grazvydas Ignotas 2013-03-10 02:49:14 +02:00 committed by Felipe Balbi
parent e561511280
commit e21de10cd8
1 changed files with 1 additions and 0 deletions
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drivers/usb/musb/musb_gadget.c
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@ -1934,6 +1934,7 @@ static int musb_gadget_stop(struct usb_gadget *g,
dev_dbg(musb->controller, "unregistering driver %s\n", driver->function);
musb->is_active = 0;
musb->gadget_driver = NULL;
musb_platform_try_idle(musb, 0);
spin_unlock_irqrestore(&musb->lock, flags);