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SubjectRe: [PATCH 29/35] USB: serial: digi_acceleport, simplify digi_chars_in_buffer
On Wed, May 05, 2021 at 11:19:22AM +0200, Jiri Slaby wrote:
> "if"'s true branch in digi_chars_in_buffer returns. So there is no need
> for "else" and indented code. Remove this else and shift the code to the
> left.
>
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Johan Hovold <johan@kernel.org>
> Cc: linux-usb@vger.kernel.org
> ---
> drivers/usb/serial/digi_acceleport.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
> index 19ee8191647c..0c4d611621c2 100644
> --- a/drivers/usb/serial/digi_acceleport.c
> +++ b/drivers/usb/serial/digi_acceleport.c
> @@ -1050,12 +1050,11 @@ static unsigned int digi_chars_in_buffer(struct tty_struct *tty)
> priv->dp_port_num, port->bulk_out_size - 2);
> /* return(port->bulk_out_size - 2); */
> return 256;
> - } else {
> - dev_dbg(&port->dev, "digi_chars_in_buffer: port=%d, chars=%d\n",
> - priv->dp_port_num, priv->dp_out_buf_len);
> - return priv->dp_out_buf_len;
> }
>
> + dev_dbg(&port->dev, "digi_chars_in_buffer: port=%d, chars=%d\n",
> + priv->dp_port_num, priv->dp_out_buf_len);
> + return priv->dp_out_buf_len;
> }

This doesn't look like much of an improvement so I'm dropping this one.

If we want to clean this up we should use a common exit path for both
branches. I'll send a couple of patches to address this and a related
issue.

Johan

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