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UPSTREAM: usb: dwc3: gadget: release spin lock during gadget resume

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It's a requirement that we release controller's lock
while calling gadget API function pointers. This
patch just fixes that long standing bug.

Change-Id: I19c2cd36fa48a6c27d59305ef2d6cb4c35512433
Signed-off-by: Jiebing Li <jiebing.li@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
(cherry picked from commit ad14d4e030)
This commit is contained in:
Jiebing Li
2014-12-11 13:26:29 +08:00
committed by Huang, Tao
parent 46ba6580a0
commit 1baa189ddb
1 changed files with 5 additions and 1 deletions
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6
drivers/usb/dwc3/gadget.c
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@@ -2484,7 +2484,11 @@ static void dwc3_gadget_wakeup_interrupt(struct dwc3 *dwc)
* implemented.
*/
dwc->gadget_driver->resume(&dwc->gadget);
if (dwc->gadget_driver && dwc->gadget_driver->resume) {
spin_unlock(&dwc->lock);
dwc->gadget_driver->resume(&dwc->gadget);
spin_lock(&dwc->lock);
}
}
static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc,