thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp()

[linux-2.6-microblaze.git] / drivers / thermal / rcar_thermal.c

diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 4a45b31..e0c1f24 100644 (file)
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -254,24 +254,20 @@ err_out_unlock:
 static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv,
                                         int *temp)
 {
-       int ctemp, tmp;
+       int ctemp;
 
        ctemp = rcar_thermal_update_temp(priv);
        if (ctemp < 0)
                return ctemp;
 
-       mutex_lock(&priv->lock);
+       /* Guaranteed operating range is -45C to 125C. */
+
        if (priv->chip->ctemp_bands == 1)
-               tmp = MCELSIUS((ctemp * 5) - 65);
+               *temp = MCELSIUS((ctemp * 5) - 65);
        else if (ctemp < 24)
-               tmp = MCELSIUS(((ctemp * 55) - 720) / 10);
+               *temp = MCELSIUS(((ctemp * 55) - 720) / 10);
        else
-               tmp = MCELSIUS((ctemp * 5) - 60);
-       mutex_unlock(&priv->lock);
-
-       /* Guaranteed operating range is -45C to 125C. */
-
-       *temp = tmp;
+               *temp = MCELSIUS((ctemp * 5) - 60);
 
        return 0;
 }