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staging: quickstart: fix up sysfs file permissions 

Use the default DEVICE_ATTR_RO/RW macros to specify the file permissions
better, and make them easier to audit.

And did we really want any user to be able to write to this file, I kind
of doubt it...

Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2013-08-24 10:34:53 -07:00
parent 00009615c3
commit 3b7cf04f87
1 changed files with 9 additions and 12 deletions
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21
drivers/staging/quickstart/quickstart.c
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@ -71,9 +71,8 @@ static struct quickstart_button *pressed;
static struct input_dev *quickstart_input;
/* Platform driver functions */
static ssize_t quickstart_buttons_show(struct device *dev,
struct device_attribute *attr,
char *buf)
static ssize_t buttons_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
int count = 0;
struct quickstart_button *b;
@ -94,18 +93,17 @@ static ssize_t quickstart_buttons_show(struct device *dev,
return count;
}
static ssize_t quickstart_pressed_button_show(struct device *dev,
struct device_attribute *attr,
char *buf)
static ssize_t pressed_button_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%s\n",
(pressed ? pressed->name : "none"));
}
static ssize_t quickstart_pressed_button_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
static ssize_t pressed_button_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
if (count < 2)
return -EINVAL;
@ -319,9 +317,8 @@ static int quickstart_acpi_remove(struct acpi_device *device)
}
/* Platform driver structs */
static DEVICE_ATTR(pressed_button, 0666, quickstart_pressed_button_show,
quickstart_pressed_button_store);
static DEVICE_ATTR(buttons, 0444, quickstart_buttons_show, NULL);
static DEVICE_ATTR_RW(pressed_button);
static DEVICE_ATTR_RO(buttons);
static struct platform_device *pf_device;
static struct platform_driver pf_driver = {
.driver = {