diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_haps.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_haps.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/drivers/platform/x86/toshiba_haps.c b/drivers/platform/x86/toshiba_haps.c index 65300b6a84b9..7f2afc6b5eb9 100644 --- a/drivers/platform/x86/toshiba_haps.c +++ b/drivers/platform/x86/toshiba_haps.c @@ -78,15 +78,20 @@ static ssize_t protection_level_store(struct device *dev, const char *buf, size_t count) { struct toshiba_haps_dev *haps = dev_get_drvdata(dev); - int level, ret; - - if (sscanf(buf, "%d", &level) != 1 || level < 0 || level > 3) - return -EINVAL; + int level; + int ret; - /* Set the sensor level. - * Acceptable levels are: + ret = kstrtoint(buf, 0, &level); + if (ret) + return ret; + /* + * Check for supported levels, which can be: * 0 - Disabled | 1 - Low | 2 - Medium | 3 - High */ + if (level < 0 || level > 3) + return -EINVAL; + + /* Set the sensor level */ ret = toshiba_haps_protection_level(haps->acpi_dev->handle, level); if (ret != 0) return ret; @@ -95,15 +100,21 @@ static ssize_t protection_level_store(struct device *dev, return count; } +static DEVICE_ATTR_RW(protection_level); static ssize_t reset_protection_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct toshiba_haps_dev *haps = dev_get_drvdata(dev); - int reset, ret; + int reset; + int ret; - if (sscanf(buf, "%d", &reset) != 1 || reset != 1) + ret = kstrtoint(buf, 0, &reset); + if (ret) + return ret; + /* The only accepted value is 1 */ + if (reset != 1) return -EINVAL; /* Reset the protection interface */ @@ -113,10 +124,7 @@ static ssize_t reset_protection_store(struct device *dev, return count; } - -static DEVICE_ATTR(protection_level, S_IRUGO | S_IWUSR, - protection_level_show, protection_level_store); -static DEVICE_ATTR(reset_protection, S_IWUSR, NULL, reset_protection_store); +static DEVICE_ATTR_WO(reset_protection); static struct attribute *haps_attributes[] = { &dev_attr_protection_level.attr, |
