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| author | Alon Ziv <alon+git@nolaviz.org> | 2010-10-10 08:32:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-22 19:22:09 +0200 |
| commit | 97cd8dc4ca9a1a5efb2cc38758e01492e3b013e2 (patch) | |
| tree | e7ef87664f93d7af5e4acd78eadf8f50eebd2ce4 /drivers | |
| parent | USB: ftdi_sio: set device latency timeout at port probe (diff) | |
| download | linux-97cd8dc4ca9a1a5efb2cc38758e01492e3b013e2.tar.xz linux-97cd8dc4ca9a1a5efb2cc38758e01492e3b013e2.zip | |
USB: opticon: Fix long-standing bugs in opticon driver
The bulk-read callback had two bugs:
a) The bulk-in packet's leading two zeros were returned (and the two last
bytes truncated)
b) The wrong URB was transmitted for the second (and later) read requests,
causing further reads to return the entire packet (including leading
zeros)
Signed-off-by: Alon Ziv <alon-git@nolaviz.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/serial/opticon.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index ed01f3b2de8c..9ff19c8a122e 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -96,8 +96,8 @@ static void opticon_bulk_callback(struct urb *urb) /* real data, send it to the tty layer */ tty = tty_port_tty_get(&port->port); if (tty) { - tty_insert_flip_string(tty, data, - data_length); + tty_insert_flip_string(tty, data + 2, + data_length); tty_flip_buffer_push(tty); tty_kref_put(tty); } @@ -130,7 +130,7 @@ exit: priv->bulk_address), priv->bulk_in_buffer, priv->buffer_size, opticon_bulk_callback, priv); - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC); if (result) dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", |