From e421fe97adf96a2b1f9d89140ec3e184f0cb7d7c Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 19 May 2010 00:01:34 +0200 Subject: [PATCH] USB: ir-usb: fix incorrect write-buffer length Returned length should include header length. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ir-usb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index e7087f9fe479..ccbce4066d04 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -307,6 +307,7 @@ static int ir_prepare_write_buffer(struct usb_serial_port *port, void *dest, size_t size) { unsigned char *buf = dest; + int count; /* * The first byte of the packet we send to the device contains an @@ -317,8 +318,9 @@ static int ir_prepare_write_buffer(struct usb_serial_port *port, */ *buf = ir_xbof | ir_baud; - return kfifo_out_locked(&port->write_fifo, buf + 1, size - 1, + count = kfifo_out_locked(&port->write_fifo, buf + 1, size - 1, &port->lock); + return count + 1; } static void ir_process_read_urb(struct urb *urb) -- 2.20.1