Regulators: wm831x-xxx - clean up driver data after removal

It is a good tone to reset driver data after unbinding the device.
Also set up drivers owner.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 61e02ac2fda3..d2406c1519a1 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -371,6 +371,8 @@ static __devexit int wm831x_gp_ldo_remove(struct platform_device *pdev)
         struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
         struct wm831x *wm831x = ldo->wm831x;
 
+        platform_set_drvdata(pdev, NULL);
+
         wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), ldo);
         regulator_unregister(ldo->regulator);
         kfree(ldo);
@@ -383,6 +385,7 @@ static struct platform_driver wm831x_gp_ldo_driver = {
         .remove = __devexit_p(wm831x_gp_ldo_remove),
         .driver         = {
                 .name   = "wm831x-ldo",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -640,6 +643,7 @@ static struct platform_driver wm831x_aldo_driver = {
         .remove = __devexit_p(wm831x_aldo_remove),
         .driver         = {
                 .name   = "wm831x-aldo",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -811,6 +815,7 @@ static struct platform_driver wm831x_alive_ldo_driver = {
         .remove = __devexit_p(wm831x_alive_ldo_remove),
         .driver         = {
                 .name   = "wm831x-alive-ldo",
+                .owner  = THIS_MODULE,
         },
 };