tree 8758ed40cb287c190ae0190cc3790164bd371aa2
parent 94e259f81a714c96f381d362228fc4743db49742
author Felipe Balbi <felipe.balbi@linux.intel.com> 1572512833 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1572544674 +0100

usb: dwc3: gadget: fix race when disabling ep with cancelled xfers

When disabling an endpoint which has cancelled requests, we should
make sure to giveback requests that are currently pending in the
cancelled list, otherwise we may fall into a situation where command
completion interrupt fires after endpoint has been disabled, therefore
causing a splat.

Fixes: fec9095bdef4 "usb: dwc3: gadget: remove wait_end_transfer"
Reported-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Link: https://lore.kernel.org/r/20191031090713.1452818-1-felipe.balbi@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>