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| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-05-19 11:18:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-19 18:32:40 +0200 |
| commit | ef44c6c1e86fa89f20d27713d7268d7c7689af5c (patch) | |
| tree | f3cf7a0c93403b6f6a9489a9d8f424eabf0c3d25 /drivers/char | |
| parent | 1deeda8d2877c18bc2b9eeee10dd6d2628852848 (diff) | |
| download | linux-ef44c6c1e86fa89f20d27713d7268d7c7689af5c.tar.gz | |
pcmcia: synclink_cs: Don't allow CS5-6
Only CS7 and CS8 seem supported but CSIZE was not sanitized in termios c_cflag. The driver sets 7 bits whenever data_bits is not 8 so default to CS7 when CSIZE is not CS8. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220519081808.3776-10-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/pcmcia/synclink_cs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index c20f2cb784e8..0daf1bc95360 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -1418,7 +1418,11 @@ static void mgslpc_change_params(MGSLPC_INFO *info, struct tty_struct *tty) info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR); /* byte size and parity */ - + if ((cflag & CSIZE) != CS8) { + cflag &= ~CSIZE; + cflag |= CS7; + tty->termios.c_cflag = cflag; + } info->params.data_bits = tty_get_char_size(cflag); if (cflag & CSTOPB) |