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path: root/drivers/hwmon/applesmc.c
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Diffstat (limited to 'drivers/hwmon/applesmc.c')
-rw-r--r--drivers/hwmon/applesmc.c38
1 files changed, 7 insertions, 31 deletions
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index d616174807a1..87a5fd51dd5e 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -448,38 +448,22 @@ static int applesmc_read_motion_sensor(int index, s16* value)
}
/*
- * applesmc_device_init - initialize the accelerometer. Returns zero on success
- * and negative error code on failure. Can sleep.
+ * applesmc_device_init - initialize the accelerometer. Can sleep.
*/
-static int applesmc_device_init(void)
+static void applesmc_device_init(void)
{
- int total, ret = -ENXIO;
+ int total;
u8 buffer[2];
if (!applesmc_accelerometer)
- return 0;
+ return;
mutex_lock(&applesmc_lock);
for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) {
- if (debug)
- printk(KERN_DEBUG "applesmc try %d\n", total);
if (!applesmc_read_key(MOTION_SENSOR_KEY, buffer, 2) &&
- (buffer[0] != 0x00 || buffer[1] != 0x00)) {
- if (total == INIT_TIMEOUT_MSECS) {
- printk(KERN_DEBUG "applesmc: device has"
- " already been initialized"
- " (0x%02x, 0x%02x).\n",
- buffer[0], buffer[1]);
- } else {
- printk(KERN_DEBUG "applesmc: device"
- " successfully initialized"
- " (0x%02x, 0x%02x).\n",
- buffer[0], buffer[1]);
- }
- ret = 0;
+ (buffer[0] != 0x00 || buffer[1] != 0x00))
goto out;
- }
buffer[0] = 0xe0;
buffer[1] = 0x00;
applesmc_write_key(MOTION_SENSOR_KEY, buffer, 2);
@@ -490,7 +474,6 @@ static int applesmc_device_init(void)
out:
mutex_unlock(&applesmc_lock);
- return ret;
}
/*
@@ -516,13 +499,8 @@ static int applesmc_get_fan_count(void)
/* Device model stuff */
static int applesmc_probe(struct platform_device *dev)
{
- int ret;
+ applesmc_device_init();
- ret = applesmc_device_init();
- if (ret)
- return ret;
-
- printk(KERN_INFO "applesmc: device successfully initialized.\n");
return 0;
}
@@ -539,9 +517,7 @@ static int applesmc_pm_resume(struct device *dev)
/* Reinitialize device on resume from hibernation */
static int applesmc_pm_restore(struct device *dev)
{
- int ret = applesmc_device_init();
- if (ret)
- return ret;
+ applesmc_device_init();
return applesmc_pm_resume(dev);
}