linux-kernel - [v2.6.34-stable 092/165] carminefb: Fix module parameters permissions

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Date:	Wed, 15 Aug 2012 15:47:16 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<stable@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	Jean Delvare <jdelvare@...e.de>, Paul Mundt <lethal@...ux-sh.org>,
	Sebastian Siewior <bigeasy@...utronix.de>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [v2.6.34-stable 092/165] carminefb: Fix module parameters permissions

From: Jean Delvare <jdelvare@...e.de>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit c84c14224bbca6ec60d5851fcc87be0e34df2f44 upstream.

The third parameter of module_param is supposed to be an octal value.
The missing leading "0" causes the following:

$ ls -l /sys/module/carminefb/parameters/
total 0
-rw-rwxr-- 1 root root 4096 Jul  8 08:55 fb_displays
-rw-rwxr-- 1 root root 4096 Jul  8 08:55 fb_mode
-rw-rwxr-- 1 root root 4096 Jul  8 08:55 fb_mode_str

After fixing the perm parameter, we get the expected:

$ ls -l /sys/module/carminefb/parameters/
total 0
-r--r--r-- 1 root root 4096 Jul  8 08:56 fb_displays
-r--r--r-- 1 root root 4096 Jul  8 08:56 fb_mode
-r--r--r-- 1 root root 4096 Jul  8 08:56 fb_mode_str

Signed-off-by: Jean Delvare <jdelvare@...e.de>
Cc: Paul Mundt <lethal@...ux-sh.org>
Cc: Sebastian Siewior <bigeasy@...utronix.de>
Signed-off-by: Paul Mundt <lethal@...ux-sh.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/video/carminefb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/carminefb.c b/drivers/video/carminefb.c
index d8345fc..96b52a4 100644
--- a/drivers/video/carminefb.c
+++ b/drivers/video/carminefb.c
@@ -32,11 +32,11 @@
 #define CARMINEFB_DEFAULT_VIDEO_MODE	1
 
 static unsigned int fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE;
-module_param(fb_mode, uint, 444);
+module_param(fb_mode, uint, 0444);
 MODULE_PARM_DESC(fb_mode, "Initial video mode as integer.");
 
 static char *fb_mode_str;
-module_param(fb_mode_str, charp, 444);
+module_param(fb_mode_str, charp, 0444);
 MODULE_PARM_DESC(fb_mode_str, "Initial video mode in characters.");
 
 /*
@@ -46,7 +46,7 @@ MODULE_PARM_DESC(fb_mode_str, "Initial video mode in characters.");
  * 0b010 Display 1
  */
 static int fb_displays = CARMINE_USE_DISPLAY0 | CARMINE_USE_DISPLAY1;
-module_param(fb_displays, int, 444);
+module_param(fb_displays, int, 0444);
 MODULE_PARM_DESC(fb_displays, "Bit mode, which displays are used");
 
 struct carmine_hw {
-- 
1.7.12.rc2

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