usb: cdns3: Fix issue for clear halt endpoint
authorPawel Laszczak <pawell@cadence.com>
Tue, 29 Mar 2022 08:46:05 +0000 (10:46 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 May 2022 07:14:29 +0000 (09:14 +0200)
commitdd2af3ad968f6b7091f75613fbd4073b2c40231e
tree18160026c4581765f2dba9ecd54c10ed180e4f47
parent455285db8717f44864c057ed2d47a2e65eb420bf
usb: cdns3: Fix issue for clear halt endpoint

commit b3fa25de31fb7e9afebe9599b8ff32eda13d7c94 upstream.

Path fixes bug which occurs during resetting endpoint in
__cdns3_gadget_ep_clear_halt function. During resetting endpoint
controller will change HW/DMA owned TRB. It set Abort flag in
trb->control and will change trb->length field. If driver want
to use the aborted trb it must update the changed field in
TRB.

Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver")
cc: <stable@vger.kernel.org>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20220329084605.4022-1-pawell@cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/cdns3/cdns3-gadget.c