ab8500_bm: Remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release or on
probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is
not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

drivers/power/ab8500_btemp.c

@@ -1045,7 +1045,6 @@ static int ab8500_btemp_remove(struct platform_device *pdev)
 
 	flush_scheduled_work();
 	power_supply_unregister(&di->btemp_psy);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }

drivers/power/ab8500_charger.c

@@ -3425,8 +3425,6 @@ static int ab8500_charger_remove(struct platform_device *pdev)
 	if (di->ac_chg.enabled && !di->ac_chg.external)
 		power_supply_unregister(&di->ac_chg.psy);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 

drivers/power/ab8500_fg.c

@@ -3070,7 +3070,6 @@ static int ab8500_fg_remove(struct platform_device *pdev)
 	flush_scheduled_work();
 	ab8500_fg_sysfs_psy_remove_attrs(di->fg_psy.dev);
 	power_supply_unregister(&di->fg_psy);
-	platform_set_drvdata(pdev, NULL);
 	return ret;
 }
 

drivers/power/abx500_chargalg.c

@@ -2035,7 +2035,6 @@ static int abx500_chargalg_remove(struct platform_device *pdev)
 	destroy_workqueue(di->chargalg_wq);
 
 	power_supply_unregister(&di->chargalg_psy);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }