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| author |   Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-06-06 13:04:21 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-10 13:49:57 +0200 |
| commit | 51ad36baacb3b2fd1bd980138a937d30d6c84cdf (patch) | |
| tree | 8eabb46704586aeb0f9d9855fb0f2171289b170d /include/linux/tty_buffer.h | |
| parent | serial: Clear rs485 struct when non-RS485 mode is set (diff) | |
| download | linux-rng-51ad36baacb3b2fd1bd980138a937d30d6c84cdf.tar.xz linux-rng-51ad36baacb3b2fd1bd980138a937d30d6c84cdf.zip | |
serial: return -EINVAL for non-legacy RS485 flags
In order to be add new flags more cleanly and safely, return -EINVAL
from TIOCSRS485 ioctl for the flags bits which are not among the
current legacy ones.
This might cause a regression for userspace as those non-flag bits do
not currently trigger -EINVAL. However, it would only occur if the
userspace is sending garbage bits so perhaps we'll get away with this
change.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220606100433.13793-25-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/tty_buffer.h')
0 files changed, 0 insertions, 0 deletions