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authorPali Rohár <pali.rohar@gmail.com>2015-01-12 14:32:02 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-01-25 09:17:59 -0800
commit7f69fb033b38022554fc43f991aef030021b2d91 (patch)
tree8f60a65b1d73bdb4e3bd2d0bc92a9976ca17dc94 /drivers/char
parent34ae40f6c91c2267af1dd3c0495082e8b9f9969e (diff)
downloadlinux-7f69fb033b38022554fc43f991aef030021b2d91.tar.bz2
i8k: Make fan module parameters an unsigned
Setting negative fan multiplier or maximal fan speed does make any sense and can cause problems. So ensure that negative values will not be accepted. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/i8k.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
index 8ec4c371dc50..d6e8a267d3a6 100644
--- a/drivers/char/i8k.c
+++ b/drivers/char/i8k.c
@@ -64,9 +64,9 @@ static DEFINE_MUTEX(i8k_mutex);
static char bios_version[4];
static struct device *i8k_hwmon_dev;
static u32 i8k_hwmon_flags;
-static int i8k_fan_mult;
-static int i8k_pwm_mult;
-static int i8k_fan_max = I8K_FAN_HIGH;
+static uint i8k_fan_mult;
+static uint i8k_pwm_mult;
+static uint i8k_fan_max = I8K_FAN_HIGH;
#define I8K_HWMON_HAVE_TEMP1 (1 << 0)
#define I8K_HWMON_HAVE_TEMP2 (1 << 1)
@@ -95,12 +95,12 @@ static bool power_status;
module_param(power_status, bool, 0600);
MODULE_PARM_DESC(power_status, "Report power status in /proc/i8k");
-static int fan_mult = I8K_FAN_MULT;
-module_param(fan_mult, int, 0);
+static uint fan_mult = I8K_FAN_MULT;
+module_param(fan_mult, uint, 0);
MODULE_PARM_DESC(fan_mult, "Factor to multiply fan speed with");
-static int fan_max = I8K_FAN_HIGH;
-module_param(fan_max, int, 0);
+static uint fan_max = I8K_FAN_HIGH;
+module_param(fan_max, uint, 0);
MODULE_PARM_DESC(fan_max, "Maximum configurable fan speed");
static int i8k_open_fs(struct inode *inode, struct file *file);
@@ -696,8 +696,8 @@ static int __init i8k_init_hwmon(void)
}
struct i8k_config_data {
- int fan_mult;
- int fan_max;
+ uint fan_mult;
+ uint fan_max;
};
enum i8k_configs {