From 9ef79d76d4c6cdf7f4616ebbbd8ac2dcef51651e Mon Sep 17 00:00:00 2001
From: Bastien Dejean <nihilhill@gmail.com>
Date: Tue, 28 Jul 2020 18:28:44 +0200
Subject: [PATCH] Remove redundant tests

---
 src/tree.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tree.c b/src/tree.c
index c9f55bd..7ef784c 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -851,7 +851,7 @@ node_t *next_node(node_t *n)
 		return first_extrema(n->second_child);
 	} else {
 		node_t *p = n;
-		while (p != NULL && is_second_child(p)) {
+		while (is_second_child(p)) {
 			p = p->parent;
 		}
 		if (is_first_child(p)) {
@@ -872,7 +872,7 @@ node_t *prev_node(node_t *n)
 		return second_extrema(n->first_child);
 	} else {
 		node_t *p = n;
-		while (p != NULL && is_first_child(p)) {
+		while (is_first_child(p)) {
 			p = p->parent;
 		}
 		if (is_second_child(p)) {
-- 
2.44.0