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Merge "dwc3: gadget: Take copy of dwc->gadget_driver before releasing lock"

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This commit is contained in:
qctecmdr 2019-10-28 20:16:02 -07:00 • committed by Gerrit - the friendly Code Review server
commit df67e52b3a
1 changed files with 16 additions and 4 deletions
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20
drivers/usb/dwc3/gadget.c
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@ -2899,43 +2899,55 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
static void dwc3_disconnect_gadget(struct dwc3 *dwc)
{
struct usb_gadget_driver *gadget_driver;
if (dwc->gadget_driver && dwc->gadget_driver->disconnect) {
gadget_driver = dwc->gadget_driver;
spin_unlock(&dwc->lock);
dbg_event(0xFF, "DISCONNECT", 0);
dwc->gadget_driver->disconnect(&dwc->gadget);
gadget_driver->disconnect(&dwc->gadget);
spin_lock(&dwc->lock);
}
}
static void dwc3_suspend_gadget(struct dwc3 *dwc)
{
struct usb_gadget_driver *gadget_driver;
if (dwc->gadget_driver && dwc->gadget_driver->suspend) {
gadget_driver = dwc->gadget_driver;
spin_unlock(&dwc->lock);
dbg_event(0xFF, "SUSPEND", 0);
dwc->gadget_driver->suspend(&dwc->gadget);
gadget_driver->suspend(&dwc->gadget);
spin_lock(&dwc->lock);
}
}
static void dwc3_resume_gadget(struct dwc3 *dwc)
{
struct usb_gadget_driver *gadget_driver;
if (dwc->gadget_driver && dwc->gadget_driver->resume) {
gadget_driver = dwc->gadget_driver;
spin_unlock(&dwc->lock);
dbg_event(0xFF, "RESUME", 0);
dwc->gadget_driver->resume(&dwc->gadget);
gadget_driver->resume(&dwc->gadget);
spin_lock(&dwc->lock);
}
}
static void dwc3_reset_gadget(struct dwc3 *dwc)
{
struct usb_gadget_driver *gadget_driver;
if (!dwc->gadget_driver)
return;
if (dwc->gadget.speed != USB_SPEED_UNKNOWN) {
gadget_driver = dwc->gadget_driver;
spin_unlock(&dwc->lock);
dbg_event(0xFF, "UDC RESET", 0);
usb_gadget_udc_reset(&dwc->gadget, dwc->gadget_driver);
usb_gadget_udc_reset(&dwc->gadget, gadget_driver);
spin_lock(&dwc->lock);
}
}