diff options
| author | Johan Hovold <johan@kernel.org> | 2021-04-07 11:52:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-10 10:36:34 +0200 |
| commit | 1b8b20868a6d64cfe8174a21b25b74367bdf0560 (patch) | |
| tree | ff3f74fd6a145199eebc043d4827d7ba39b8dfc8 /drivers/tty/tty_ioctl.c | |
| parent | d09845e98a05850a8094ea8fd6dd09a8e6824fff (diff) | |
tty: fix return value for unsupported ioctls
Drivers should return -ENOTTY ("Inappropriate I/O control operation")
when an ioctl isn't supported, while -EINVAL is used for invalid
arguments.
Fix up the TIOCMGET, TIOCMSET and TIOCGICOUNT helpers which returned
-EINVAL when a tty driver did not implement the corresponding
operations.
Note that the TIOCMGET and TIOCMSET helpers predate git and do not get a
corresponding Fixes tag below.
Fixes: d281da7ff6f7 ("tty: Make tiocgicount a handler")
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407095208.31838-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_ioctl.c')
0 files changed, 0 insertions, 0 deletions