linux-kernel - [PATCH] Staging:emxx_udc:emxx_udc: Compression of lines for immediate return

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Date:   Mon, 31 Oct 2016 13:50:11 +0530
From:   Nadim Almas <nadim.902@...il.com>
To:     gregkh@...uxfoundation.org, janani.rvchndrn@...il.com
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] Staging:emxx_udc:emxx_udc: Compression of lines for
 immediate return

This patch compresses two lines into a single line
if immediate return statement is found. Remove variable data as
it is no longer needed.

It is done using script Coccinelle. And coccinelle uses the following
semantic patch for this compression function

@@
local idexpression ret;
expression e;
@@

-ret =
+return
     e;
-return ret;

Signed-off-by: Nadim Almas <nadim.902@...il.com>
---
 drivers/staging/emxx_udc/emxx_udc.c       | 4 +---
 
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index abe2aaf..31f4206 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -2979,9 +2979,7 @@ static int nbu2ss_gad_get_frame(struct usb_gadget *pgadget)
 	if (data == 0)
 		return -EINVAL;
 
-	data = _nbu2ss_readl(&udc->p_regs->USB_ADDRESS) & FRAME;
-
-	return data;
+	return _nbu2ss_readl(&udc->p_regs->USB_ADDRESS) & FRAME;
 }
 
 
2.7.4