linux-kernel - [085/105] mfd: ab8500: world-writable debugfs register-* files

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Message-Id: <20110412143557.046968936@clark.kroah.org>
Date:	Tue, 12 Apr 2011 07:35:14 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Vasiliy Kulikov <segoon@...nwall.com>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	Samuel Ortiz <sameo@...ux.intel.com>
Subject: [085/105] mfd: ab8500: world-writable debugfs register-* files

2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Vasiliy Kulikov <segoon@...nwall.com>

commit 44bdcb54df2714da18c4a0c6f711a350ab4ed93c upstream.

Don't allow everybody to interact with hardware registers.

Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com>
Acked-by: Linus Walleij <linus.walleij@...ricsson.com>
Signed-off-by: Samuel Ortiz <sameo@...ux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/mfd/ab8500-debugfs.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -585,18 +585,18 @@ static int __devinit ab8500_debug_probe(
 		goto exit_destroy_dir;
 
 	ab8500_bank_file = debugfs_create_file("register-bank",
-		(S_IRUGO | S_IWUGO), ab8500_dir, &plf->dev, &ab8500_bank_fops);
+		(S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev, &ab8500_bank_fops);
 	if (!ab8500_bank_file)
 		goto exit_destroy_reg;
 
 	ab8500_address_file = debugfs_create_file("register-address",
-		(S_IRUGO | S_IWUGO), ab8500_dir, &plf->dev,
+		(S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev,
 		&ab8500_address_fops);
 	if (!ab8500_address_file)
 		goto exit_destroy_bank;
 
 	ab8500_val_file = debugfs_create_file("register-value",
-		(S_IRUGO | S_IWUGO), ab8500_dir, &plf->dev, &ab8500_val_fops);
+		(S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev, &ab8500_val_fops);
 	if (!ab8500_val_file)
 		goto exit_destroy_address;
 


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