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Filename Latest commit message Latest commit date
Johan Hovold b6803d57f5 tty: fix return value for unsupported ioctls
[ Upstream commit 1b8b20868a6d64cfe8174a21b25b74367bdf0560 ]

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: d281da7ff6 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-14 09:44:22 +02:00
arch m68k: mvme147,mvme16x: Don't wipe PCC timer config bits 2021-05-14 09:44:19 +02:00
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drivers tty: fix return value for unsupported ioctls 2021-05-14 09:44:22 +02:00
fs ovl: fix missing revert_creds() on error path 2021-05-14 09:44:16 +02:00
include tty: fix return value for unsupported ioctls 2021-05-14 09:44:22 +02:00
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Makefile Linux 5.4.118 2021-05-11 14:04:18 +02:00
README

Linux kernel
============

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In order to build the documentation, use ``make htmldocs`` or
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    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
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the problems which may result by upgrading your kernel.