From 94d0562569e89e728e0af4cd2c0710ed9e3d4885 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Thu, 30 Sep 2021 10:02:35 -0400
Subject: [PATCH] Kernel: Make UART::print_num(0) work on aarch64

---
 Kernel/Prekernel/Arch/aarch64/UART.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Kernel/Prekernel/Arch/aarch64/UART.h b/Kernel/Prekernel/Arch/aarch64/UART.h
index 1533924b0e..f20a5cdf10 100644
--- a/Kernel/Prekernel/Arch/aarch64/UART.h
+++ b/Kernel/Prekernel/Arch/aarch64/UART.h
@@ -30,10 +30,10 @@ public:
     {
         char buf[11];
         int i = 0;
-        while (n) {
+        do {
             buf[i++] = (n % 10) + '0';
             n /= 10;
-        }
+        } while (n);
         for (i--; i >= 0; i--)
             send(buf[i]);
     }