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platform/x86: asus-wmi: fix cpufv sysfs file permission

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The cpufv sysfs file is defined as readable by anyone even if the
attribute does not have a show function. The result of every read is an
IO error. This file should be write only.

Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Jérémy Lefaure 2017-04-21 22:19:45 -04:00 committed by Andy Shevchenko
parent f9ac89f5ad
commit a8fe342856
1 changed files with 2 additions and 2 deletions
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4
drivers/platform/x86/asus-wmi.c
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@ -1757,7 +1757,7 @@ ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME); ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE); ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr, static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int value, rv; int value, rv;
@ -1774,7 +1774,7 @@ static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
return count; return count;
} }
static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv); static DEVICE_ATTR_WO(cpufv);
static struct attribute *platform_attributes[] = { static struct attribute *platform_attributes[] = {
&dev_attr_cpufv.attr, &dev_attr_cpufv.attr,