RE: [PATCH v3 2/2] usb: dwc2: gadget: modify return statement

From: David Laight
Date: Fri Oct 17 2014 - 05:03:44 EST


From: Of Sudip Mukherjee
> modified the function to have a single return statement at the end
> instead of multiple return statement in the middle of the function
> to improve the readability of the code.

Many of us would disagree with you there.
Early returns actually make the code easier to read, certainly
better than a goto 'end of function'.

David

> This patch depends on the previous patch of the series.
>
> Signed-off-by: Sudip Mukherjee <sudip@xxxxxxxxxxxxxxx>
> ---
> drivers/usb/dwc2/gadget.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
> index 7f25527..e8a8fc7 100644
> --- a/drivers/usb/dwc2/gadget.c
> +++ b/drivers/usb/dwc2/gadget.c
> @@ -2471,7 +2471,8 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
> dir_in = (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? 1 : 0;
> if (dir_in != hs_ep->dir_in) {
> dev_err(hsotg->dev, "%s: direction mismatch!\n", __func__);
> - return -EINVAL;
> + ret = -EINVAL;
> + goto error1;
> }
>
> mps = usb_endpoint_maxp(desc);
> @@ -2583,6 +2584,7 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
>
> error:
> spin_unlock_irqrestore(&hsotg->lock, flags);
> +error1:
> return ret;
> }
>
> --
> 1.8.1.2
>
> --
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