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| /openbmc/linux/drivers/tty/ |
| H A D | tty_ldisc.c | 7896f30d Mon Jan 11 00:41:05 CST 2016 Peter Hurley <peter@hurleysoftware.com> tty: Refactor tty_ldisc_reinit() for reuse
At tty hangup, the line discipline instance is reinitialized by
closing the current ldisc instance and opening a new instance.
This operation is complicated by error recovery: if the attempt
to reinit the current line discipline fails, the line discipline
is reset to N_TTY (which should not but can fail).
Re-purpose tty_ldisc_reinit() to return a valid, open line discipline
instance, or otherwise, an error.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
7896f30d Mon Jan 11 00:41:05 CST 2016 Peter Hurley <peter@hurleysoftware.com> tty: Refactor tty_ldisc_reinit() for reuse
At tty hangup, the line discipline instance is reinitialized by
closing the current ldisc instance and opening a new instance.
This operation is complicated by error recovery: if the attempt
to reinit the current line discipline fails, the line discipline
is reset to N_TTY (which should not but can fail).
Re-purpose tty_ldisc_reinit() to return a valid, open line discipline
instance, or otherwise, an error.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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