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s390/tty3270: ignore NUL characters

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With 'TERM=vt220' zsh is sending several NUL characters with
the prompt to the tty. Both xterm and the linux drm console
seem to ignore them. Ignore them in tty3270 as well.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Sven Schnelle
2022-11-17 17:52:40 +01:00
committed by Heiko Carstens
parent e4b57b9393
commit 970cf9a97a
1 changed files with 2 additions and 0 deletions
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2
drivers/s390/char/con3270.c
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@@ -1732,6 +1732,8 @@ static void tty3270_do_write(struct tty3270 *tp, struct tty_struct *tty,
}
switch (buf[i_msg]) {
case 0x00:
break;
case 0x07: /* '\a' -- Alarm */
tp->wcc |= TW_PLUSALARM;
break;