From: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Date: Thu, 26 Feb 2015 09:32:40 +0000 (+0200)
Subject: staging: rtl8712: rewrite the right hand side of an assignment
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cb329d837dce4cdb23ecf1fe38713675552751c0;p=linux-beck.git

staging: rtl8712: rewrite the right hand side of an assignment

This patch rewrites the right hand side of an assignment for
expressions of the form:
a = (a <op> b);
to be:
a <op>= b;
where <op> = << | >>.

This issue was detected and resolved using the following
coccinelle script:

@@
identifier i;
expression e;
@@

-i = (i >> e);
+i >>= e;

@@
identifier i;
expression e;
@@

-i = (i << e);
+i <<= e;

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c
index c653ad6854b4..743dd93688b5 100644
--- a/drivers/staging/rtl8712/rtl871x_security.c
+++ b/drivers/staging/rtl8712/rtl871x_security.c
@@ -1045,7 +1045,7 @@ static sint aes_cipher(u8 *key, uint	hdrlen,
 	uint	frtype  = GetFrameType(pframe);
 	uint	frsubtype  = GetFrameSubType(pframe);
 
-	frsubtype = frsubtype >> 4;
+	frsubtype >>= 4;
 	memset((void *)mic_iv, 0, 16);
 	memset((void *)mic_header1, 0, 16);
 	memset((void *)mic_header2, 0, 16);
@@ -1216,7 +1216,7 @@ static sint aes_decipher(u8 *key, uint	hdrlen,
 	uint frtype  = GetFrameType(pframe);
 	uint frsubtype  = GetFrameSubType(pframe);
 
-	frsubtype = frsubtype >> 4;
+	frsubtype >>= 4;
 	memset((void *)mic_iv, 0, 16);
 	memset((void *)mic_header1, 0, 16);
 	memset((void *)mic_header2, 0, 16);