From: Johan Hovold Date: Wed, 7 Oct 2009 18:05:04 +0000 (+0200) Subject: USB: ftdi_sio: remove tty->low_latency X-Git-Tag: v2.6.31.5~40 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bd67850fbc2e4bf38d6af8b0a9d271f333652778;p=thirdparty%2Fkernel%2Fstable.git USB: ftdi_sio: remove tty->low_latency commit 0cbd81a9f6bac734ac3266687bf027af1e395270 upstream. Fixes tty_flip_buffer_push being called from hard interrupt context with low_latency set. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 0cc78f9ad9eb9..f8187a18f7449 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1235,7 +1235,6 @@ static int set_serial_info(struct tty_struct *tty, (new_serial.flags & ASYNC_FLAGS)); priv->custom_divisor = new_serial.custom_divisor; - tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; write_latency_timer(port); check_and_exit: @@ -1706,9 +1705,6 @@ static int ftdi_open(struct tty_struct *tty, priv->rx_bytes = 0; spin_unlock_irqrestore(&priv->rx_lock, flags); - if (tty) - tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; - write_latency_timer(port); /* No error checking for this (will get errors later anyway) */