From 31dc02701d0becb426c7f01c891641a74a897774 Mon Sep 17 00:00:00 2001
From: Ross Burton <ross.burton@arm.com>
Date: Mon, 22 Aug 2022 16:19:48 +0100
Subject: [PATCH] oeqa/qemurunner: add run_serial() comment

Add a comment explaining the non-obvious return codes.

(From OE-Core rev: 6572baffa02ba6b8a686490d55af17cacb528920)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 meta/lib/oeqa/utils/qemurunner.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py
index 76296d50cd..4c3d2010fb 100644
--- a/meta/lib/oeqa/utils/qemurunner.py
+++ b/meta/lib/oeqa/utils/qemurunner.py
@@ -618,6 +618,8 @@ class QemuRunner:
                 return self.qmp.cmd(command)
 
     def run_serial(self, command, raw=False, timeout=60):
+        # Returns (status, output) where status is 1 on success and 0 on error
+
         # We assume target system have echo to get command status
         if not raw:
             command = "%s; echo $?\n" % command