linux-kernel - [PATCH] usb: gadget: fusb300_udc: compress return logic into one line

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Message-ID: <20170710031054.GA16519@embeddedgus>
Date:   Sun, 9 Jul 2017 22:10:55 -0500
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH] usb: gadget: fusb300_udc: compress return logic into one line

Simplify return logic to avoid unnecessary variable declaration
and assignment.

These issues were detected using Coccinelle and the following
semantic patch:

@@
local idexpression ret;
expression e;
@@

-ret =
+return
     e;
-return ret;

Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
 drivers/usb/gadget/udc/fusb300_udc.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
index e0c1b00..8738f03 100644
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/drivers/usb/gadget/udc/fusb300_udc.c
@@ -659,22 +659,16 @@ static void fusb300_rdfifo(struct fusb300_ep *ep,
 
 static u8 fusb300_get_epnstall(struct fusb300 *fusb300, u8 ep)
 {
-	u8 value;
 	u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
 
-	value = reg & FUSB300_EPSET0_STL;
-
-	return value;
+	return reg & FUSB300_EPSET0_STL;
 }
 
 static u8 fusb300_get_cxstall(struct fusb300 *fusb300)
 {
-	u8 value;
 	u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR);
 
-	value = (reg & FUSB300_CSR_STL) >> 1;
-
-	return value;
+	return (reg & FUSB300_CSR_STL) >> 1;
 }
 
 static void request_error(struct fusb300 *fusb300)
-- 
2.5.0