From: Stephen Boyd Date: Wed, 28 Dec 2016 22:57:08 +0000 (-0800) Subject: usb: chipidea: Drop lock across event_notify during gadget stop X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=afff6067b305697dd4b3b2f2d8b2dd5da78539c8;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git usb: chipidea: Drop lock across event_notify during gadget stop The CI_HDRC_CONTROLLER_STOPPED_EVENT may want to call sleeping APIs similar to how _gadget_stop_activity() may. Let's drop the lock across the event so that glue drivers can make sleeping calls. Cc: Peter Chen Cc: Greg Kroah-Hartman Signed-off-by: Stephen Boyd Signed-off-by: Peter Chen --- diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 732b281485de..f88e9157fad0 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1793,10 +1793,10 @@ static int ci_udc_stop(struct usb_gadget *gadget) if (ci->vbus_active) { hw_device_state(ci, 0); + spin_unlock_irqrestore(&ci->lock, flags); if (ci->platdata->notify_event) ci->platdata->notify_event(ci, CI_HDRC_CONTROLLER_STOPPED_EVENT); - spin_unlock_irqrestore(&ci->lock, flags); _gadget_stop_activity(&ci->gadget); spin_lock_irqsave(&ci->lock, flags); pm_runtime_put(&ci->gadget.dev);