From: Heinrich Schuchardt <xypron.glpk@gmx.de>
Date: Tue, 27 Oct 2020 19:29:24 +0000 (+0100)
Subject: sandbox: use O_CLOEXEC in os_open()
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=c0b19f25a1a2ba935333899e5dcbe4429851cb18;p=u-boot.git

sandbox: use O_CLOEXEC in os_open()

During a cold reset execv() is used to relaunch the U-Boot binary.
We must ensure that all files are closed in this case.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index c461fb0db0..7e474d6364 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -80,6 +80,11 @@ int os_open(const char *pathname, int os_flags)
 		flags |= O_CREAT;
 	if (os_flags & OS_O_TRUNC)
 		flags |= O_TRUNC;
+	/*
+	 * During a cold reset execv() is used to relaunch the U-Boot binary.
+	 * We must ensure that all files are closed in this case.
+	 */
+	flags |= O_CLOEXEC;
 
 	return open(pathname, flags, 0777);
 }