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n_tty: Ignore all read data when closing

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On final port close (and thus final tty close), only output flow
control requests in the input data should be processed. Ignore all
other input data, including parity errors, overruns and breaks.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2016-01-10 20:36:09 -08:00 committed by Greg Kroah-Hartman
parent c9c10d912a
commit 7f71b2c144
1 changed files with 0 additions and 2 deletions
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2
drivers/tty/n_tty.c
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@ -1524,8 +1524,6 @@ n_tty_receive_buf_closing(struct tty_struct *tty, const unsigned char *cp,
flag = *fp++;
if (likely(flag == TTY_NORMAL))
n_tty_receive_char_closing(tty, *cp++);
else
n_tty_receive_char_flagged(tty, *cp++, flag);
}
}