linux-kernel - [PATCH 5/9] drivers/regulator/virtual: avoid world-writable sysfs files.

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Message-Id: <1398137612-9714-6-git-send-email-rusty@rustcorp.com.au>
Date:	Tue, 22 Apr 2014 13:03:28 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	linux-kernel@...r.kernel.org
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 5/9] drivers/regulator/virtual: avoid world-writable sysfs files.

In line with practice for module parameters, we're adding a build-time
check that sysfs files aren't world-writable.

Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>
---
 drivers/regulator/virtual.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/regulator/virtual.c b/drivers/regulator/virtual.c
index f53e78b9a84e..6ff95b045984 100644
--- a/drivers/regulator/virtual.c
+++ b/drivers/regulator/virtual.c
@@ -266,11 +266,11 @@ static ssize_t set_mode(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-static DEVICE_ATTR(min_microvolts, 0666, show_min_uV, set_min_uV);
-static DEVICE_ATTR(max_microvolts, 0666, show_max_uV, set_max_uV);
-static DEVICE_ATTR(min_microamps, 0666, show_min_uA, set_min_uA);
-static DEVICE_ATTR(max_microamps, 0666, show_max_uA, set_max_uA);
-static DEVICE_ATTR(mode, 0666, show_mode, set_mode);
+static DEVICE_ATTR(min_microvolts, 0664, show_min_uV, set_min_uV);
+static DEVICE_ATTR(max_microvolts, 0664, show_max_uV, set_max_uV);
+static DEVICE_ATTR(min_microamps, 0664, show_min_uA, set_min_uA);
+static DEVICE_ATTR(max_microamps, 0664, show_max_uA, set_max_uA);
+static DEVICE_ATTR(mode, 0664, show_mode, set_mode);
 
 static struct attribute *regulator_virtual_attributes[] = {
 	&dev_attr_min_microvolts.attr,
-- 
1.8.3.2

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