RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons

Favor "if (foo)" style over "if (foo != NULL)".

Signed-off-by: Andy Grover <andy.grover@oracle.com>
diff --git a/net/rds/bind.c b/net/rds/bind.c
index 5d95fc0..65de5cb 100644
--- a/net/rds/bind.c
+++ b/net/rds/bind.c
@@ -121,7 +121,7 @@
 	do {
 		if (rover == 0)
 			rover++;
-		if (rds_bind_tree_walk(addr, cpu_to_be16(rover), rs) == NULL) {
+		if (!rds_bind_tree_walk(addr, cpu_to_be16(rover), rs)) {
 			*port = cpu_to_be16(rover);
 			ret = 0;
 			break;
@@ -184,7 +184,7 @@
 		goto out;
 
 	trans = rds_trans_get_preferred(sin->sin_addr.s_addr);
-	if (trans == NULL) {
+	if (!trans) {
 		ret = -EADDRNOTAVAIL;
 		rds_remove_bound(rs);
 		if (printk_ratelimit())