staging: lustre: lov: 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>

drivers/staging/lustre/lustre/lov/lov_obd.c

@@ -553,7 +553,7 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 
 		newsize = max_t(__u32, lov->lov_tgt_size, 2);
 		while (newsize < index + 1)
-			newsize = newsize << 1;
+			newsize <<= 1;
 		OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
 		if (newtgts == NULL) {
 			mutex_unlock(&lov->lov_lock);