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tty: Hold termios_rwsem for tcflow(TCIxxx)
authorPeter Hurley <peter@hurleysoftware.com>
Wed, 10 Sep 2014 19:06:35 +0000 (15:06 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 24 Sep 2014 04:19:36 +0000 (21:19 -0700)
While transmitting a START/STOP char for tcflow(TCION/TCIOFF), prevent
a termios change. Otherwise, a garbage in-band flow control char
may be sent, if the termios change overlaps the transmission setup.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/tty_ioctl.c patch | blob | history

diff --cc drivers/tty/tty_ioctl.c
Simple merge
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