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authorJohan Hovold <jhovold@gmail.com>2013-06-26 16:47:21 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-07-24 01:21:50 +0200
commit91c4211c394996df485184b7308c8868be1b2055 (patch)
tree82527ad9d8efbfb7e6742bbbc2283a517445389f /drivers/usb
parentUSB: serial: remove defensive test from set_termios (diff)
downloadlinux-91c4211c394996df485184b7308c8868be1b2055.tar.xz
linux-91c4211c394996df485184b7308c8868be1b2055.zip
USB: serial: remove hupping check from tiocmiwait
Since commit 31ca020b ("TTY: wake up processes last at hangup") there no longer any need to check the hupping flag in the generic tiocmiwait implementation, so remove it. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/serial/generic.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index ba45170c78e5..1f31e6b4c251 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -460,12 +460,7 @@ static bool usb_serial_generic_msr_changed(struct tty_struct *tty,
/*
* Use tty-port initialised flag to detect all hangups including the
* one generated at USB-device disconnect.
- *
- * FIXME: Remove hupping check once tty_port_hangup calls shutdown
- * (which clears the initialised flag) before wake up.
*/
- if (test_bit(TTY_HUPPING, &tty->flags))
- return true;
if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags))
return true;
@@ -496,12 +491,8 @@ int usb_serial_generic_tiocmiwait(struct tty_struct *tty, unsigned long arg)
ret = wait_event_interruptible(port->port.delta_msr_wait,
usb_serial_generic_msr_changed(tty, arg, &cnow));
- if (!ret) {
- if (test_bit(TTY_HUPPING, &tty->flags))
- ret = -EIO;
- if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags))
- ret = -EIO;
- }
+ if (!ret && !test_bit(ASYNCB_INITIALIZED, &port->port.flags))
+ ret = -EIO;
return ret;
}