linux-kernel - [PATCH 03/20] mach-omap2: smartreflex: world-writable debugfs voltage files

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Message-Id: <96a2b24548af3a68fde712c68b49e856e53ea1fc.1296818921.git.segoon@openwall.com>
Date:	Fri,  4 Feb 2011 15:23:20 +0300
From:	Vasiliy Kulikov <segoon@...nwall.com>
To:	linux-kernel@...r.kernel.org
Cc:	security@...nel.org, Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 03/20] mach-omap2: smartreflex: world-writable debugfs voltage files

Don't allow everybody to change voltage settings.

Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com>
---
 Cannot compile the driver, so it is not tested at all.

 arch/arm/mach-omap2/smartreflex.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index c37e823..95ac336 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -900,7 +900,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
 		return PTR_ERR(dbg_dir);
 	}
 
-	(void) debugfs_create_file("autocomp", S_IRUGO | S_IWUGO, dbg_dir,
+	(void) debugfs_create_file("autocomp", S_IRUGO | S_IWUSR, dbg_dir,
 				(void *)sr_info, &pm_sr_fops);
 	(void) debugfs_create_x32("errweight", S_IRUGO, dbg_dir,
 			&sr_info->err_weight);
@@ -939,7 +939,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
 		strcpy(name, "volt_");
 		sprintf(volt_name, "%d", volt_data[i].volt_nominal);
 		strcat(name, volt_name);
-		(void) debugfs_create_x32(name, S_IRUGO | S_IWUGO, nvalue_dir,
+		(void) debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
 				&(sr_info->nvalue_table[i].nvalue));
 	}
 
-- 
1.7.0.4

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