linux-kernel - [PATCH 32/32] Staging/octeon-usb/octeon-hcd.c: Compression of lines for immediate return This patch compresses two lines in to a single line in file octeon-hcd.c

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Date:	Fri, 22 Jul 2016 03:17:17 -0700
From:	Nadim almas <nadim.902@...il.com>
To:	gregkh@...uxfoundation.org
Cc:	mmarek@...e.com, linux-kernel@...r.kernel.org,
	devel@...verdev.osuosl.org, Nadim almas <nadim.902@...il.com>
Subject: [PATCH 32/32] Staging/octeon-usb/octeon-hcd.c: Compression of lines for immediate return This patch compresses two lines in to a single line in file octeon-hcd.c

if immediate return statement is found. It also removes variable
bytes_written as
it is no longer needed.

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

@@
expression ret;
identifier f;
@@

-ret =
+return
     f(...);
-return ret;

Signed-off-by: Nadim Almas<nadim.902@...il.com>
Acked-by: Julia Lawall <julia.lawall@...6.fr>
---
 Makefile                                |  2 +-
 drivers/staging/octeon-usb/octeon-hcd.c | 16 ++++++++--------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/Makefile b/Makefile
index 4fb6bea..3d9d77a6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 7
 SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION = -eudyptula-rc4
 NAME = Psychotic Stoned Sheep
 
 # *DOCUMENTATION*
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 17442b3..b801c8a 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -508,15 +508,15 @@ static int octeon_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
 {
 	int ret;
 
-	ret = octeon_alloc_temp_buffer(urb, mem_flags);
-	if (ret)
-		return ret;
+     
+	if (octeon_alloc_temp_buffer(urb, mem_flags))
+		return octeon_alloc_temp_buffer(urb, mem_flags);
 
-	ret = usb_hcd_map_urb_for_dma(hcd, urb, mem_flags);
-	if (ret)
+
+	if (usb_hcd_map_urb_for_dma(hcd, urb, mem_flags))
 		octeon_free_temp_buffer(urb);
 
-	return ret;
+	return usb_hcd_map_urb_for_dma(hcd, urb, mem_flags);
 }
 
 /**
@@ -542,8 +542,8 @@ static void octeon_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
  */
 static inline u32 cvmx_usb_read_csr32(struct octeon_hcd *usb, u64 address)
 {
-	u32 result = cvmx_read64_uint32(address ^ 4);
-	return result;
+	 
+	return cvmx_read64_uint32(address ^ 4);
 }
 
 /**
-- 
2.7.4