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>
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@ -263,23 +263,15 @@ void mtu3_free_request(struct usb_ep *ep, struct usb_request *req)
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static int mtu3_gadget_queue(struct usb_ep *ep,
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struct usb_request *req, gfp_t gfp_flags)
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{
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struct mtu3_ep *mep;
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struct mtu3_request *mreq;
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struct mtu3 *mtu;
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struct mtu3_ep *mep = to_mtu3_ep(ep);
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struct mtu3_request *mreq = to_mtu3_request(req);
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struct mtu3 *mtu = mep->mtu;
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unsigned long flags;
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int ret = 0;
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if (!ep || !req)
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return -EINVAL;
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if (!req->buf)
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return -ENODATA;
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mep = to_mtu3_ep(ep);
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mtu = mep->mtu;
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mreq = to_mtu3_request(req);
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mreq->mtu = mtu;
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if (mreq->mep != mep)
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return -EINVAL;
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@ -303,6 +295,7 @@ static int mtu3_gadget_queue(struct usb_ep *ep,
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return -ESHUTDOWN;
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}
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mreq->mtu = mtu;
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mreq->request.actual = 0;
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mreq->request.status = -EINPROGRESS;
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@ -335,11 +328,11 @@ static int mtu3_gadget_dequeue(struct usb_ep *ep, struct usb_request *req)
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struct mtu3_ep *mep = to_mtu3_ep(ep);
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struct mtu3_request *mreq = to_mtu3_request(req);
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struct mtu3_request *r;
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struct mtu3 *mtu = mep->mtu;
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unsigned long flags;
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int ret = 0;
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struct mtu3 *mtu = mep->mtu;
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if (!ep || !req || mreq->mep != mep)
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if (mreq->mep != mep)
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return -EINVAL;
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dev_dbg(mtu->dev, "%s : req=%p\n", __func__, req);
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@ -379,9 +372,6 @@ static int mtu3_gadget_ep_set_halt(struct usb_ep *ep, int value)
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unsigned long flags;
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int ret = 0;
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if (!ep)
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return -EINVAL;
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dev_dbg(mtu->dev, "%s : %s...", __func__, ep->name);
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spin_lock_irqsave(&mtu->lock, flags);
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@ -424,9 +414,6 @@ static int mtu3_gadget_ep_set_wedge(struct usb_ep *ep)
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{
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struct mtu3_ep *mep = to_mtu3_ep(ep);
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if (!ep)
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return -EINVAL;
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mep->wedged = 1;
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return usb_ep_set_halt(ep);
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