linux-kernel - [PATCH 1/2] usb: gadget: compress return logic into one line

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Message-ID: <20170710023435.GA6257@embeddedgus>
Date:   Sun, 9 Jul 2017 21:34:35 -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 1/2] usb: gadget: compress return logic into one line

Simplify return logic to avoid unnecessary variable declaration
and 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@...eddedor.com>
---
 drivers/usb/gadget/config.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
index 17a6077..23bfa7d 100644
--- a/drivers/usb/gadget/config.c
+++ b/drivers/usb/gadget/config.c
@@ -207,7 +207,6 @@ EXPORT_SYMBOL_GPL(usb_free_all_descriptors);
 struct usb_descriptor_header *usb_otg_descriptor_alloc(
 				struct usb_gadget *gadget)
 {
-	struct usb_descriptor_header *otg_desc;
 	unsigned length = 0;
 
 	if (gadget->otg_caps && (gadget->otg_caps->otg_rev >= 0x0200))
@@ -215,8 +214,7 @@ struct usb_descriptor_header *usb_otg_descriptor_alloc(
 	else
 		length = sizeof(struct usb_otg_descriptor);
 
-	otg_desc = kzalloc(length, GFP_KERNEL);
-	return otg_desc;
+	return kzalloc(length, GFP_KERNEL);
 }
 EXPORT_SYMBOL_GPL(usb_otg_descriptor_alloc);
 
-- 
2.5.0