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 c653ad6854b4d3776c978730b924e6ee02535704..743dd93688b5f3a145c269844486b5dcd44ffd67 100644 (file)
--- 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);