staging: emxx_udc: 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/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 6c1de27..ee8f69f 100644 (file)
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -1454,7 +1454,7 @@ static int _nbu2ss_set_feature_device(
                break;
 
        case USB_DEVICE_TEST_MODE:
-               wIndex = wIndex >> 8;
+               wIndex >>= 8;
                if (wIndex <= MAX_TEST_MODE_NUM)
                        result = 0;
                break;
@@ -1671,7 +1671,7 @@ static int std_req_set_address(struct nbu2ss_udc *udc)
        if (wValue != (wValue & 0x007F))
                return -EINVAL;
 
-       wValue = wValue << USB_ADRS_SHIFT;
+       wValue <<= USB_ADRS_SHIFT;
 
        _nbu2ss_writel(&udc->p_regs->USB_ADDRESS, wValue);
        _nbu2ss_create_ep0_packet(udc, udc->ep0_buf, 0);