USB: ftdi_sio: fix error message on close

Resubmitting read urb fails with -EPERM if completion handler runs while
urb is being killed on close. This should not be reported as an error.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 7638828e7317787bbd8905f426032c3dbbaa2dce..22070ac5c3fe3952fd781f05fadf008b779d4041 100644 (file)
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1720,7 +1720,7 @@ static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags)
                           urb->transfer_buffer_length,
                           ftdi_read_bulk_callback, port);
        result = usb_submit_urb(urb, mem_flags);
-       if (result)
+       if (result && result != -EPERM)
                dev_err(&port->dev,
                        "%s - failed submitting read urb, error %d\n",
                                                        __func__, result);