Merge branches 'topic/tps51632', 'topic/tps80031', 'topic/vexpress', 'topic/max8925...

[~andy/linux] / drivers / regulator / core.c

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f7c74db7465cefa6b375b19ab986f36eda0e7a1c..3db1e011d2292254eb623ea97323a30342d9afb9 100644 (file)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1381,22 +1381,14 @@ struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get_exclusive);
 
-/**
- * regulator_put - "free" the regulator source
- * @regulator: regulator source
- *
- * Note: drivers must ensure that all regulator_enable calls made on this
- * regulator source are balanced by regulator_disable calls prior to calling
- * this function.
- */
-void regulator_put(struct regulator *regulator)
+/* Locks held by regulator_put() */
+static void _regulator_put(struct regulator *regulator)
 {
        struct regulator_dev *rdev;
 
        if (regulator == NULL || IS_ERR(regulator))
                return;
 
-       mutex_lock(&regulator_list_mutex);
        rdev = regulator->rdev;
 
        debugfs_remove_recursive(regulator->debugfs);
@@ -1412,6 +1404,20 @@ void regulator_put(struct regulator *regulator)
        rdev->exclusive = 0;
 
        module_put(rdev->owner);
+}
+
+/**
+ * regulator_put - "free" the regulator source
+ * @regulator: regulator source
+ *
+ * Note: drivers must ensure that all regulator_enable calls made on this
+ * regulator source are balanced by regulator_disable calls prior to calling
+ * this function.
+ */
+void regulator_put(struct regulator *regulator)
+{
+       mutex_lock(&regulator_list_mutex);
+       _regulator_put(regulator);
        mutex_unlock(&regulator_list_mutex);
 }
 EXPORT_SYMBOL_GPL(regulator_put);
@@ -1974,7 +1980,7 @@ int regulator_is_supported_voltage(struct regulator *regulator,
        if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
                ret = regulator_get_voltage(regulator);
                if (ret >= 0)
-                       return (min_uV >= ret && ret <= max_uV);
+                       return (min_uV <= ret && ret <= max_uV);
                else
                        return ret;
        }
@@ -3370,7 +3376,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
                if (ret != 0) {
                        rdev_err(rdev, "Failed to request enable GPIO%d: %d\n",
                                 config->ena_gpio, ret);
-                       goto clean;
+                       goto wash;
                }
 
                rdev->ena_gpio = config->ena_gpio;
@@ -3450,10 +3456,11 @@ unset_supplies:
 
 scrub:
        if (rdev->supply)
-               regulator_put(rdev->supply);
+               _regulator_put(rdev->supply);
        if (rdev->ena_gpio)
                gpio_free(rdev->ena_gpio);
        kfree(rdev->constraints);
+wash:
        device_unregister(&rdev->dev);
        /* device core frees rdev */
        rdev = ERR_PTR(ret);