commit: 7ca2cd291fd84ae499390f227a255ccba2780a81 From: Michael Grzeschik <[email protected]> Date: Thu, 4 Apr 2013 13:13:47 +0300 Subject: usb: chipidea: udc: fix memory leak in _ep_nuke
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 <[email protected]> # v3.5 Signed-off-by: Michael Grzeschik <[email protected]> Signed-off-by: Alexander Shishkin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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 b4cac44..3d90e61 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -540,6 +540,12 @@ __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 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
