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, 12 insertions, 0 deletions

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 0a6577577e8d..6e18e56d850b 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -600,6 +600,8 @@ static __devexit int wm831x_buckv_remove(struct platform_device *pdev)
         struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
         struct wm831x *wm831x = dcdc->wm831x;
 
+        platform_set_drvdata(pdev, NULL);
+
         wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "HC"), dcdc);
         wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
         regulator_unregister(dcdc->regulator);
@@ -615,6 +617,7 @@ static struct platform_driver wm831x_buckv_driver = {
         .remove = __devexit_p(wm831x_buckv_remove),
         .driver         = {
                 .name   = "wm831x-buckv",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -769,6 +772,8 @@ static __devexit int wm831x_buckp_remove(struct platform_device *pdev)
         struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
         struct wm831x *wm831x = dcdc->wm831x;
 
+        platform_set_drvdata(pdev, NULL);
+
         wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
         regulator_unregister(dcdc->regulator);
         kfree(dcdc);
@@ -781,6 +786,7 @@ static struct platform_driver wm831x_buckp_driver = {
         .remove = __devexit_p(wm831x_buckp_remove),
         .driver         = {
                 .name   = "wm831x-buckp",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -895,6 +901,8 @@ static __devexit int wm831x_boostp_remove(struct platform_device *pdev)
         struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
         struct wm831x *wm831x = dcdc->wm831x;
 
+        platform_set_drvdata(pdev, NULL);
+
         wm831x_free_irq(wm831x, platform_get_irq_byname(pdev, "UV"), dcdc);
         regulator_unregister(dcdc->regulator);
         kfree(dcdc);
@@ -907,6 +915,7 @@ static struct platform_driver wm831x_boostp_driver = {
         .remove = __devexit_p(wm831x_boostp_remove),
         .driver         = {
                 .name   = "wm831x-boostp",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -979,6 +988,8 @@ static __devexit int wm831x_epe_remove(struct platform_device *pdev)
 {
         struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
 
+        platform_set_drvdata(pdev, NULL);
+
         regulator_unregister(dcdc->regulator);
         kfree(dcdc);
 
@@ -990,6 +1001,7 @@ static struct platform_driver wm831x_epe_driver = {
         .remove = __devexit_p(wm831x_epe_remove),
         .driver         = {
                 .name   = "wm831x-epe",
+                .owner  = THIS_MODULE,
         },
 };