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| author | Jiebing Li <jiebing.li@intel.com> | 2014-12-11 13:26:29 +0800 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-03-29 09:30:31 +0300 |
| commit | ad14d4e0308afda06a60036020a15025571604af (patch) | |
| tree | d6d4c8fed5984f1ebb7e0b09f03743d3464bb674 /drivers/usb/dwc3 | |
| parent | f59dcab176293b646e1358144c93c58c3cda2813 (diff) | |
| download | linux-ad14d4e0308afda06a60036020a15025571604af.tar.gz linux-ad14d4e0308afda06a60036020a15025571604af.tar.bz2 linux-ad14d4e0308afda06a60036020a15025571604af.zip | |
usb: dwc3: gadget: release spin lock during gadget resume
It's a requirement that we release controller's lock
while calling gadget API function pointers. This
patch just fixes that long standing bug.
Signed-off-by: Jiebing Li <jiebing.li@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 3ac170f9d94d..3d2c53e4ac92 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2487,7 +2487,11 @@ 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, |