USB: serial: Avoid goto in bulk callbacks

[Johan Hovold <johan@kernel.org>]

On Mon, Dec 11, 2017 at 12:11:52AM +0100, Ladislav Michl wrote:
> Refactor bulk callback functions to make use of goto pointless.
> 
> Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
> ---
>  drivers/usb/serial/generic.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
> index 2274d9625f63..d1a09ba10b6f 100644
> --- a/drivers/usb/serial/generic.c
> +++ b/drivers/usb/serial/generic.c
> @@ -389,6 +389,9 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
>  							urb->actual_length);
>  	switch (status) {
>  	case 0:
> +		usb_serial_debug_data(&port->dev, __func__,
> +					urb->actual_length, data);
> +		port->serial->type->process_read_urb(urb);
>  		break;

So as for the ti driver, I prefer keeping the success path out of the
switch statement.

Thanks,
Johan
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