diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2006-05-22 12:26:31 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 15:04:12 -0700 |
| commit | 83196b52053068f0240371ad2efd9d6ad685bbeb (patch) | |
| tree | 61ce5b727519780633f1cc4cfaaebc7087a1f8d2 | |
| parent | 212a4b4ed1ea9a969f3f967b3e3a8075ad1cb4de (diff) | |
[PATCH] gadgetfs: fix AIO interface bugs
This patch (as691) fixes a few errors in the AIO interface for the
gadgetfs driver. Now requests will complete properly instead of hanging.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/gadget/inode.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 0eb010a3f5b..57bf24810f9 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -528,7 +528,7 @@ struct kiocb_priv { struct usb_request *req; struct ep_data *epdata; void *buf; - char __user *ubuf; + char __user *ubuf; /* NULL for writes */ unsigned actual; }; @@ -566,7 +566,6 @@ static ssize_t ep_aio_read_retry(struct kiocb *iocb) status = priv->actual; kfree(priv->buf); kfree(priv); - aio_put_req(iocb); return status; } @@ -580,8 +579,8 @@ 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 (NULL == iocb->ki_retry - || unlikely(0 == req->actual) + if (priv->ubuf == NULL + || unlikely(req->actual == 0) || unlikely(kiocbIsCancelled(iocb))) { kfree(req->buf); kfree(priv); @@ -618,7 +617,7 @@ ep_aio_rwtail( char __user *ubuf ) { - struct kiocb_priv *priv = (void *) &iocb->private; + struct kiocb_priv *priv; struct usb_request *req; ssize_t value; @@ -670,7 +669,7 @@ fail: kfree(priv); put_ep(epdata); } else - value = -EIOCBQUEUED; + value = (ubuf ? -EIOCBRETRY : -EIOCBQUEUED); return value; } |