platform/x86: GPD pocket fan: Set speed to max on get_temp failure

When we fail to get the temperature, assume the worst and set the speed
to max.

While at it introduce a define for MAX_SPEED.

Cc: James <kernel@madingley.org>
Suggested-by: James <kernel@madingley.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

diff --git a/drivers/platform/x86/gpd-pocket-fan.c b/drivers/platform/x86/gpd-pocket-fan.c
index c6f4d89..1fdf220 100644 (file)
--- a/drivers/platform/x86/gpd-pocket-fan.c
+++ b/drivers/platform/x86/gpd-pocket-fan.c
@@ -13,6 +13,8 @@
 #include <linux/thermal.h>
 #include <linux/workqueue.h>
 
+#define MAX_SPEED 3
+
 static int temp_limits[3] = { 55000, 60000, 65000 };
 module_param_array(temp_limits, int, NULL, 0444);
 MODULE_PARM_DESC(temp_limits,
@@ -53,9 +55,8 @@ static void gpd_pocket_fan_worker(struct work_struct *work)
        if (thermal_zone_get_temp(fan->dts0, &t0) ||
            thermal_zone_get_temp(fan->dts1, &t1)) {
                dev_warn(fan->dev, "Error getting temperature\n");
-               queue_delayed_work(system_wq, &fan->work,
-                                  msecs_to_jiffies(1000));
-               return;
+               speed = MAX_SPEED;
+               goto set_speed;
        }
 
        temp = max(t0, t1);
@@ -79,8 +80,9 @@ static void gpd_pocket_fan_worker(struct work_struct *work)
                speed = i;
 
        if (fan->last_speed <= 0 && speed)
-               speed = 3; /* kick start motor */
+               speed = MAX_SPEED; /* kick start motor */
 
+set_speed:
        gpd_pocket_fan_set_speed(fan, speed);
 
        /* When mostly idle (low temp/speed), slow down the poll interval. */