linux-kernel - [PATCH 1/2] firmware: fix google/gsmi duplicate efivars_sysfs

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Message-Id: <1390914382-3285-2-git-send-email-walken@google.com>
Date:	Tue, 28 Jan 2014 05:06:21 -0800
From:	Michel Lespinasse <walken@...gle.com>
To:	Mike Waychison <mikew@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Cc:	Matt Fleming <matt.fleming@...el.com>, Tom Gundersen <teg@...m.no>
Subject: [PATCH 1/2] firmware: fix google/gsmi duplicate efivars_sysfs_init()

Starting in commit e14ab23dde12b80db4c94b684a2e485b72b16af3,
efivars_sysfs_init() is called both by itself as an init function,
and by drivers/firmware/google/gsmi.c gsmi_init().

This results in runtime warnings such as the following:
[    5.651330] WARNING: at fs/sysfs/dir.c:530 sysfs_add_one+0xbd/0xe0()
[    5.657699] sysfs: cannot create duplicate filename '/firmware/gsmi/vars'

Fixing this by removing the redundant efivars_sysfs_init() call in
gsmi_init().

Tested: booted, checked that /firmware/gsmi/vars was still present and
showed the expected contents.

Signed-off-by: Michel Lespinasse <walken@...gle.com>
---
 drivers/firmware/google/gsmi.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
index e5a67b24587a..f1ab05ea56bb 100644
--- a/drivers/firmware/google/gsmi.c
+++ b/drivers/firmware/google/gsmi.c
@@ -892,13 +892,6 @@ static __init int gsmi_init(void)
 		goto out_remove_sysfs_files;
 	}
 
-	ret = efivars_sysfs_init();
-	if (ret) {
-		printk(KERN_INFO "gsmi: Failed to create efivars files\n");
-		efivars_unregister(&efivars);
-		goto out_remove_sysfs_files;
-	}
-
 	register_reboot_notifier(&gsmi_reboot_notifier);
 	register_die_notifier(&gsmi_die_notifier);
 	atomic_notifier_chain_register(&panic_notifier_list,
-- 
1.8.5.3
--
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