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USB: serial: clean up some error and debug messages in generic driver

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Clean up error messages on usb_submit_urb failure.
Remove debug message on zero-length writes.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Johan Hovold 2010-03-17 23:06:01 +01:00 committed by Greg Kroah-Hartman
parent 1b551015a1
commit 1a1405e225
1 changed files with 4 additions and 9 deletions
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13
drivers/usb/serial/generic.c
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@ -221,8 +221,7 @@ static int usb_serial_multi_urb_write(struct tty_struct *tty,
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
dev_err(&port->dev,
"%s - failed submitting write urb, error %d\n",
dev_err(&port->dev, "%s - error submitting urb: %d\n",
__func__, status);
goto error;
}
@ -285,8 +284,7 @@ static int usb_serial_generic_write_start(struct usb_serial_port *port)
/* send the data out the bulk port */
result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
if (result) {
dev_err(&port->dev,
"%s - failed submitting write urb, error %d\n",
dev_err(&port->dev, "%s - error submitting urb: %d\n",
__func__, result);
/* don't have to grab the lock here, as we will
retry if != 0 */
@ -324,10 +322,8 @@ int usb_serial_generic_write(struct tty_struct *tty,
if (!port->bulk_out_size)
return -ENODEV;
if (count == 0) {
dbg("%s - write request of 0 bytes", __func__);
if (!count)
return 0;
}
if (serial->type->max_in_flight_urbs)
return usb_serial_multi_urb_write(tty, port,
@ -400,8 +396,7 @@ int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
result = usb_submit_urb(port->read_urb, mem_flags);
if (result && result != -EPERM) {
dev_err(&port->dev,
"%s - failed submitting read urb, error %d\n",
dev_err(&port->dev, "%s - error submitting urb: %d\n",
__func__, result);
}
return result;