diff options
| author | Mike Lockwood <lockwood@android.com> | 2011-01-13 16:19:57 -0500 |
|---|---|---|
| committer | Mike Lockwood <lockwood@android.com> | 2011-01-13 16:24:22 -0500 |
| commit | cd02d2ba933778f17cd9e7e792b9c4c76dcb0785 (patch) | |
| tree | d1d29ae6b5048031718dccf0f3fd829daca2ce25 | |
| parent | 9842a6487d40eff010754416670672a2b6403624 (diff) | |
| download | qemu-cd02d2ba933778f17cd9e7e792b9c4c76dcb0785.tar.gz | |
USB: gadget: f_mtp: Make sure request is dequeued if transfer is canceled
If the host cancels a file transfer while we have a read request pending,
call usb_ep_dequeue to cancel the read.
Also return -ECANCELED from mtp_ioctl if we are canceled in MTP_RECEIVE_FILE
Signed-off-by: Mike Lockwood <lockwood@android.com>
| -rw-r--r-- | drivers/usb/gadget/f_mtp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/gadget/f_mtp.c b/drivers/usb/gadget/f_mtp.c index 64fe3b3cd9e..e07224fd9f8 100644 --- a/drivers/usb/gadget/f_mtp.c +++ b/drivers/usb/gadget/f_mtp.c @@ -756,8 +756,10 @@ static void receive_file_work(struct work_struct *data) /* wait for our last read to complete */ ret = wait_event_interruptible(dev->read_wq, dev->rx_done || dev->state != STATE_BUSY); - if (ret < 0 || dev->state != STATE_BUSY) { - r = ret; + if (dev->state == STATE_CANCELED) { + r = -ECANCELED; + if (!dev->rx_done) + usb_ep_dequeue(dev->ep_out, read_req); break; } /* if xfer_file_length is 0xFFFFFFFF, then we read until |