diff options
Diffstat (limited to 'drivers/platform/x86/toshiba_haps.c')
| -rw-r--r-- | drivers/platform/x86/toshiba_haps.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/platform/x86/toshiba_haps.c b/drivers/platform/x86/toshiba_haps.c index 65300b6a84b9..db6cc53f8c55 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; @@ -101,9 +106,14 @@ static ssize_t reset_protection_store(struct device *dev, 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 */ |