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| author | Johan Hovold <jhovold@gmail.com> | 2013-03-21 12:37:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-25 13:50:52 -0700 |
| commit | c648e94ebfc7701f4d0c79dce959134f02f24ce7 (patch) | |
| tree | 25065dc79f9b73126a3130cad7a8e8a69fc0bc3a | |
| parent | 493516e34455cdfcd0a2875bb62ed5d910782958 (diff) | |
| download | linux-c648e94ebfc7701f4d0c79dce959134f02f24ce7.tar.gz linux-c648e94ebfc7701f4d0c79dce959134f02f24ce7.tar.bz2 linux-c648e94ebfc7701f4d0c79dce959134f02f24ce7.zip | |
USB: cypress_m8: fix TIOCMIWAIT and disconnect
Use tty-port modem-status-change wait queue on which processes are woken
up at hangup and disconnect.
Currently a process waiting on modem-status changes will not be woken on
device disconnect.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/serial/cypress_m8.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index cdbb09691aee..e4a62cfc4081 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -861,7 +861,7 @@ static int cypress_tiocmiwait(struct tty_struct *tty, unsigned long arg) char diff; for (;;) { - interruptible_sleep_on(&port->delta_msr_wait); + interruptible_sleep_on(&port->port.delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; @@ -1176,7 +1176,7 @@ static void cypress_read_int_callback(struct urb *urb) if (priv->current_status != priv->prev_status) { priv->diff_status |= priv->current_status ^ priv->prev_status; - wake_up_interruptible(&port->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); priv->prev_status = priv->current_status; } spin_unlock_irqrestore(&priv->lock, flags); |