From 89b5b9acf6037fc1a87f9e85c64831187a47ba94 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sat, 17 Apr 2021 13:55:51 +0200
Subject: Implemented I/O polling

---
 kernel/features/mm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'kernel/features/mm.c')

diff --git a/kernel/features/mm.c b/kernel/features/mm.c
index 9f0bd07..4ed3ab9 100644
--- a/kernel/features/mm.c
+++ b/kernel/features/mm.c
@@ -512,7 +512,7 @@ res memory_sys_alloc(struct page_dir *dir, u32 size, u32 *addr, u32 *id, u8 shar
 
 res memory_sys_free(struct page_dir *dir, u32 addr)
 {
-	if (!addr || !memory_readable((void *)addr))
+	if (!memory_readable((void *)addr))
 		return -EFAULT;
 
 	struct list *links = proc_current()->memory;
-- 
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