linux-kernel - [45/74] mfd: ab3100: world-writable debugfs *

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Date:	Wed, 13 Apr 2011 08:51:09 -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: [45/74] mfd: ab3100: world-writable debugfs *_priv files

2.6.32-longterm review patch.  If anyone has any objections, please let us know.

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

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

commit f8a0697722d12a201588225999cfc8bfcbc82781 upstream.

Don't allow everybody to change device 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/ab3100-core.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -591,7 +591,7 @@ static void ab3100_setup_debugfs(struct
 	ab3100_get_priv.ab3100 = ab3100;
 	ab3100_get_priv.mode = false;
 	ab3100_get_reg_file = debugfs_create_file("get_reg",
-				S_IWUGO, ab3100_dir, &ab3100_get_priv,
+				S_IWUSR, ab3100_dir, &ab3100_get_priv,
 				&ab3100_get_set_reg_fops);
 	if (!ab3100_get_reg_file) {
 		err = -ENOMEM;
@@ -601,7 +601,7 @@ static void ab3100_setup_debugfs(struct
 	ab3100_set_priv.ab3100 = ab3100;
 	ab3100_set_priv.mode = true;
 	ab3100_set_reg_file = debugfs_create_file("set_reg",
-				S_IWUGO, ab3100_dir, &ab3100_set_priv,
+				S_IWUSR, ab3100_dir, &ab3100_set_priv,
 				&ab3100_get_set_reg_fops);
 	if (!ab3100_set_reg_file) {
 		err = -ENOMEM;


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