From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130518021644.646081473@goodmis.org> Date: Fri, 17 May 2013 22:16:15 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Michael Grzeschik , Alexander Shishkin , Greg Kroah-Hartman Subject: [ 018/136 ] usb: chipidea: udc: fix memory leak in _ep_nuke References: <20130518021557.139113314@goodmis.org> Content-Disposition: inline; filename=0018-usb-chipidea-udc-fix-memory-leak-in-_ep_nuke.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.6.11.4 stable review patch. If anyone has any objections, please let me know. ------------------ From: Michael Grzeschik [ Upstream commit 7ca2cd291fd84ae499390f227a255ccba2780a81 ] In hardware_enqueue code adds one extra td with dma_pool_alloc if mReq->req.zero is true. When _ep_nuke will be called for that endpoint, dma_pool_free will not be called to free that memory again. That patch fixes this. Cc: stable # v3.5 Signed-off-by: Michael Grzeschik Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman Signed-off-by: Steven Rostedt --- drivers/usb/chipidea/udc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index e0315f9..d5172fa 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -541,6 +541,12 @@ __acquires(mEp->lock) struct ci13xxx_req *mReq = \ list_entry(mEp->qh.queue.next, struct ci13xxx_req, queue); + + if (mReq->zptr) { + dma_pool_free(mEp->td_pool, mReq->zptr, mReq->zdma); + mReq->zptr = NULL; + } + list_del_init(&mReq->queue); mReq->req.status = -ESHUTDOWN; -- 1.7.10.4