From c1aa075acb696c374613fded0380c7ad8a96ebf5 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 19 May 2010 00:01:41 +0200 Subject: [PATCH] USB: ftdi_sio: fix legacy SIO-device header Length field of header was incorrectly set to available payload space rather than the actual payload size. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 97f2d9c1edd6..050211afc07e 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1752,10 +1752,10 @@ static int ftdi_prepare_write_buffer(struct usb_serial_port *port, spin_lock_irqsave(&port->lock, flags); for (i = 0; i < size - 1; i += priv->max_packet_size) { len = min_t(int, size - i, priv->max_packet_size) - 1; - buffer[i] = (len << 2) + 1; c = kfifo_out(&port->write_fifo, &buffer[i + 1], len); if (!c) break; + buffer[i] = (c << 2) + 1; count += c + 1; } spin_unlock_irqrestore(&port->lock, flags); -- 2.20.1