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authorPeter Chen <peter.chen@nxp.com>2020-02-19 22:14:54 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-03-04 10:56:25 +0100
commit8a7c47fb7285b23ca259c888016513d5566fa9e8 (patch)
treea294eee70a57322caa97a10d56c73da372180153 /drivers
parentf8788d86ab28f61f7b46eb6be375f8a726783636 (diff)
downloadlinux-8a7c47fb7285b23ca259c888016513d5566fa9e8.tar.bz2
usb: cdns3: gadget: link trb should point to next request
It has marked the dequeue trb as link trb, but its next segment pointer is still itself, it causes the transfer can't go on. Fix it by set its pointer as the trb address for the next request. Fixes: f616c3bda47e ("usb: cdns3: Fix dequeue implementation") Signed-off-by: Peter Chen <peter.chen@nxp.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200219141455.23257-2-peter.chen@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/cdns3/gadget.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index 736b0c6e27fe..1d8a2af35bb0 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -2550,7 +2550,7 @@ found:
/* Update ring only if removed request is on pending_req_list list */
if (req_on_hw_ring) {
link_trb->buffer = TRB_BUFFER(priv_ep->trb_pool_dma +
- (priv_req->start_trb * TRB_SIZE));
+ ((priv_req->end_trb + 1) * TRB_SIZE));
link_trb->control = (link_trb->control & TRB_CYCLE) |
TRB_TYPE(TRB_LINK) | TRB_CHAIN;