No need unlock @mtu->lock when unmap request, unlock it just before giving back request, due to we do not lock this spinlock when map the request. Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> --- drivers/usb/mtu3/mtu3_gadget.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c index c0264d5426bf..ad0eeac4332d 100644 --- a/drivers/usb/mtu3/mtu3_gadget.c +++ b/drivers/usb/mtu3/mtu3_gadget.c @@ -23,7 +23,6 @@ __acquires(mep->mtu->lock) req->status = status; trace_mtu3_req_complete(mreq); - spin_unlock(&mtu->lock); /* ep0 makes use of PIO, needn't unmap it */ if (mep->epnum) @@ -32,6 +31,7 @@ __acquires(mep->mtu->lock) dev_dbg(mtu->dev, "%s complete req: %p, sts %d, %d/%d\n", mep->name, req, req->status, req->actual, req->length); + spin_unlock(&mtu->lock); usb_gadget_giveback_request(&mep->ep, req); spin_lock(&mtu->lock); } -- 2.18.0
