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| author | Johan Hovold <johan@kernel.org> | 2019-10-29 13:23:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-06 14:18:20 +0300 |
| commit | f936fa2c1f8f00a21cfd84363073f02da829454f (patch) | |
| tree | ab3b5a7d5cfdfb42dcd285406cf5ef73821f95c8 /drivers/usb | |
| parent | 1c06f5d2901f91a7d63f8df478ed6a793bd785e3 (diff) | |
| download | linux-f936fa2c1f8f00a21cfd84363073f02da829454f.tar.xz | |
USB: serial: whiteheat: fix line-speed endianness
commit 84968291d7924261c6a0624b9a72f952398e258b upstream.
Add missing endianness conversion when setting the line speed so that
this driver might work also on big-endian machines.
Also use an unsigned format specifier in the corresponding debug
message.
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191029102354.2733-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/serial/whiteheat.c | 9 | ||||
| -rw-r--r-- | drivers/usb/serial/whiteheat.h | 2 |
2 files changed, 7 insertions, 4 deletions
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 52b4f8ad93d0..345211f1a491 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -681,6 +681,7 @@ static void firm_setup_port(struct tty_struct *tty) struct device *dev = &port->dev; struct whiteheat_port_settings port_settings; unsigned int cflag = tty->termios.c_cflag; + speed_t baud; port_settings.port = port->port_number + 1; @@ -741,11 +742,13 @@ static void firm_setup_port(struct tty_struct *tty) dev_dbg(dev, "%s - XON = %2x, XOFF = %2x\n", __func__, port_settings.xon, port_settings.xoff); /* get the baud rate wanted */ - port_settings.baud = tty_get_baud_rate(tty); - dev_dbg(dev, "%s - baud rate = %d\n", __func__, port_settings.baud); + baud = tty_get_baud_rate(tty); + port_settings.baud = cpu_to_le32(baud); + dev_dbg(dev, "%s - baud rate = %u\n", __func__, baud); /* fixme: should set validated settings */ - tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud); + tty_encode_baud_rate(tty, baud, baud); + /* handle any settings that aren't specified in the tty structure */ port_settings.lloop = 0; diff --git a/drivers/usb/serial/whiteheat.h b/drivers/usb/serial/whiteheat.h index 38065df4d2d8..30169c859a74 100644 --- a/drivers/usb/serial/whiteheat.h +++ b/drivers/usb/serial/whiteheat.h @@ -91,7 +91,7 @@ struct whiteheat_simple { struct whiteheat_port_settings { __u8 port; /* port number (1 to N) */ - __u32 baud; /* any value 7 - 460800, firmware calculates + __le32 baud; /* any value 7 - 460800, firmware calculates best fit; arrives little endian */ __u8 bits; /* 5, 6, 7, or 8 */ __u8 stop; /* 1 or 2, default 1 (2 = 1.5 if bits = 5) */ |