diff options
| author | Michael Grzeschik <m.grzeschik@pengutronix.de> | 2013-04-04 13:13:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-07 20:33:06 -0700 |
| commit | 062e3257b83ba5013389d5ac40fa1d471663d6c3 (patch) | |
| tree | a4536d42c554c5cc77dced57b6f70d0bafbff7fd | |
| parent | d7a47d57560718f0d2f96e2a3f89887ff1be2669 (diff) | |
usb: chipidea: udc: fix memory leak in _ep_nuke
commit 7ca2cd291fd84ae499390f227a255ccba2780a81 upstream.
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.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 77fb66f1992..d86333b8c43 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -563,6 +563,12 @@ __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; |