diff options
| author | Johan Hovold <johan@kernel.org> | 2017-05-11 11:41:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-25 14:30:13 +0200 |
| commit | 4be0ae3d314c197865bc742069fa7f66e22ee8bf (patch) | |
| tree | a1a24eeffc24a26c7f1aa4409e2a45d5ee6f5f37 | |
| parent | 704f23f20c5effd3592453c06a77b3cbb4ab34d5 (diff) | |
USB: serial: mct_u232: fix big-endian baud-rate handling
commit 26cede343656c0bc2c33cdc783771282405c7fb2 upstream.
Drop erroneous cpu_to_le32 when setting the baud rate, something which
corrupted the divisor on big-endian hosts.
Found using sparse:
warning: incorrect type in argument 1 (different base types)
expected unsigned int [unsigned] [usertype] val
got restricted __le32 [usertype] <noident>
Fixes: af2ac1a091bc ("USB: serial mct_usb232: move DMA buffers to heap")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-By: Pete Zaitcev <zaitcev@yahoo.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/serial/mct_u232.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index 9bf82c262c5b..a6c07c6be25f 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -189,7 +189,7 @@ static int mct_u232_set_baud_rate(struct tty_struct *tty, return -ENOMEM; divisor = mct_u232_calculate_baud_rate(serial, value, &speed); - put_unaligned_le32(cpu_to_le32(divisor), buf); + put_unaligned_le32(divisor, buf); rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), MCT_U232_SET_BAUD_RATE_REQUEST, MCT_U232_SET_REQUEST_TYPE, |