regulator: Warn when unregistering an in-use regulator

We're probably going to start oopsing fairly soon after this happens.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index e11c222..79a6910 100644 (file)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2253,6 +2253,7 @@ void regulator_unregister(struct regulator_dev *rdev)
                return;
 
        mutex_lock(&regulator_list_mutex);
+       WARN_ON(rdev->open_count);
        unset_regulator_supplies(rdev);
        list_del(&rdev->list);
        if (rdev->supply)