diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/inode.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 1c5e1ee7e36..34296e79edc 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -576,7 +576,6 @@ static ssize_t ep_aio_read_retry(struct kiocb *iocb) } kfree(priv->buf); kfree(priv); - aio_put_req(iocb); return len; } @@ -590,18 +589,17 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req) spin_lock(&epdata->dev->lock); priv->req = NULL; priv->epdata = NULL; - if (priv->iv == NULL - || unlikely(req->actual == 0) - || unlikely(kiocbIsCancelled(iocb))) { + + /* if this was a write or a read returning no data then we + * don't need to copy anything to userspace, so we can + * complete the aio request immediately. + */ + if (priv->iv == NULL || unlikely(req->actual == 0)) { kfree(req->buf); kfree(priv); iocb->private = NULL; /* aio_complete() reports bytes-transferred _and_ faults */ - if (unlikely(kiocbIsCancelled(iocb))) - aio_put_req(iocb); - else - aio_complete(iocb, - req->actual ? req->actual : req->status, + aio_complete(iocb, req->actual ? req->actual : req->status, req->status); } else { /* retry() won't report both; so we hide some faults */ |