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/recv.c b/net/rds/recv.c
index c93588c..88f1f5a 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -210,7 +210,7 @@
 	}
 
 	rs = rds_find_bound(daddr, inc->i_hdr.h_dport);
-	if (rs == NULL) {
+	if (!rs) {
 		rds_stats_inc(s_recv_drop_no_sock);
 		goto out;
 	}
@@ -251,7 +251,7 @@
 {
 	unsigned long flags;
 
-	if (*inc == NULL) {
+	if (!*inc) {
 		read_lock_irqsave(&rs->rs_recv_lock, flags);
 		if (!list_empty(&rs->rs_recv_queue)) {
 			*inc = list_entry(rs->rs_recv_queue.next,