linux-kernel - [PATCH 5.6 088/126] tools/bootconfig: Fix apply

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Message-Id: <20200526183945.367638554@linuxfoundation.org>
Date:   Tue, 26 May 2020 20:53:45 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.6 088/126] tools/bootconfig: Fix apply_xbc() to return zero on success

From: Steven Rostedt (VMware) <rostedt@...dmis.org>

[ Upstream commit 9d82ccda2bc5c148060543d249d54f8703741bb4 ]

The return of apply_xbc() returns the result of the last write() call, which
is not what is expected. It should only return zero on success.

Link: https://lore.kernel.org/r/20200508093059.GF9365@kadam

Fixes: 8842604446d1 ("tools/bootconfig: Fix resource leak in apply_xbc()")
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Masami Hiramatsu <mhiramat@...nel.org>
Tested-by: Masami Hiramatsu <mhiramat@...nel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/bootconfig/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/bootconfig/main.c b/tools/bootconfig/main.c
index 5dbe893cf00c..37fb2e85de12 100644
--- a/tools/bootconfig/main.c
+++ b/tools/bootconfig/main.c
@@ -310,6 +310,7 @@ int apply_xbc(const char *path, const char *xbc_path)
 		pr_err("Failed to apply a boot config magic: %d\n", ret);
 		goto out;
 	}
+	ret = 0;
 out:
 	close(fd);
 	free(data);
-- 
2.25.1