diff options
| author |   Chunfeng Yun <chunfeng.yun@mediatek.com> | 2020-07-27 15:14:50 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-29 16:53:57 +0200 |
| commit | fde9156ad5f0db3be9acad4de52e35dc1a3243be (patch) | |
| tree | 3640548af6e37d444700b7c2278f067e318f9828 /drivers/usb/mtu3 | |
| parent | usb: xhci: Fix ASMedia ASM1142 DMA addressing (diff) | |
| download | linux-dev-fde9156ad5f0db3be9acad4de52e35dc1a3243be.tar.xz linux-dev-fde9156ad5f0db3be9acad4de52e35dc1a3243be.zip | |
usb: mtu3: remove unnecessary pointer checks
The class driver will ensure the parameters are valid
pointers before call the hook function of usb_ep_ops,
so no need check them again.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1595834101-13094-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/mtu3')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_gadget.c | 25 |
1 files changed, 6 insertions, 19 deletions
diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c index f93732e53fd8..6b26cb8054cd 100644 --- a/drivers/usb/mtu3/mtu3_gadget.c +++ b/drivers/usb/mtu3/mtu3_gadget.c @@ -263,23 +263,15 @@ void mtu3_free_request(struct usb_ep *ep, struct usb_request *req) static int mtu3_gadget_queue(struct usb_ep *ep, struct usb_request *req, gfp_t gfp_flags) { - struct mtu3_ep *mep; - struct mtu3_request *mreq; - struct mtu3 *mtu; + struct mtu3_ep *mep = to_mtu3_ep(ep); + struct mtu3_request *mreq = to_mtu3_request(req); + struct mtu3 *mtu = mep->mtu; unsigned long flags; int ret = 0; - if (!ep || !req) - return -EINVAL; - if (!req->buf) return -ENODATA; - mep = to_mtu3_ep(ep); - mtu = mep->mtu; - mreq = to_mtu3_request(req); - mreq->mtu = mtu; - if (mreq->mep != mep) return -EINVAL; @@ -303,6 +295,7 @@ static int mtu3_gadget_queue(struct usb_ep *ep, return -ESHUTDOWN; } + mreq->mtu = mtu; mreq->request.actual = 0; mreq->request.status = -EINPROGRESS; @@ -335,11 +328,11 @@ static int mtu3_gadget_dequeue(struct usb_ep *ep, struct usb_request *req) struct mtu3_ep *mep = to_mtu3_ep(ep); struct mtu3_request *mreq = to_mtu3_request(req); struct mtu3_request *r; + struct mtu3 *mtu = mep->mtu; unsigned long flags; int ret = 0; - struct mtu3 *mtu = mep->mtu; - if (!ep || !req || mreq->mep != mep) + if (mreq->mep != mep) return -EINVAL; dev_dbg(mtu->dev, "%s : req=%p\n", __func__, req); @@ -379,9 +372,6 @@ static int mtu3_gadget_ep_set_halt(struct usb_ep *ep, int value) unsigned long flags; int ret = 0; - if (!ep) - return -EINVAL; - dev_dbg(mtu->dev, "%s : %s...", __func__, ep->name); spin_lock_irqsave(&mtu->lock, flags); @@ -424,9 +414,6 @@ static int mtu3_gadget_ep_set_wedge(struct usb_ep *ep) { struct mtu3_ep *mep = to_mtu3_ep(ep); - if (!ep) - return -EINVAL; - mep->wedged = 1; return usb_ep_set_halt(ep); |