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From: "Gustavo A. R. Silva" <garsilva@embeddedor.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <garsilva@embeddedor.com>
Subject: [PATCH] usb: isp1760: compress return logic into one line
Date: Sun, 9 Jul 2017 21:00:07 -0500	[thread overview]
Message-ID: <20170710020007.GA30095@embeddedgus> (raw)

Simplify return logic to avoid unnecessary variable assignment.

This issue was 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@embeddedor.com>
---
 drivers/usb/isp1760/isp1760-hcd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c
index ac31d19..8e59e0c 100644
--- a/drivers/usb/isp1760/isp1760-hcd.c
+++ b/drivers/usb/isp1760/isp1760-hcd.c
@@ -396,7 +396,6 @@ static int handshake(struct usb_hcd *hcd, u32 reg,
 /* reset a non-running (STS_HALT == 1) controller */
 static int ehci_reset(struct usb_hcd *hcd)
 {
-	int retval;
 	struct isp1760_hcd *priv = hcd_to_priv(hcd);
 
 	u32 command = reg_read32(hcd->regs, HC_USBCMD);
@@ -405,9 +404,8 @@ static int ehci_reset(struct usb_hcd *hcd)
 	reg_write32(hcd->regs, HC_USBCMD, command);
 	hcd->state = HC_STATE_HALT;
 	priv->next_statechange = jiffies;
-	retval = handshake(hcd, HC_USBCMD,
-			    CMD_RESET, 0, 250 * 1000);
-	return retval;
+
+	return handshake(hcd, HC_USBCMD, CMD_RESET, 0, 250 * 1000);
 }
 
 static struct isp1760_qh *qh_alloc(gfp_t flags)
-- 
2.5.0

             reply	other threads:[~2017-07-10  2:00 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-10  2:00 Gustavo A. R. Silva [this message]
2017-07-10  7:36 ` [PATCH] usb: isp1760: compress return logic into one line Oliver Neukum
2017-07-10 19:58   ` Gustavo A. R. Silva
2017-07-11  8:10     ` Oliver Neukum

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