regulator: ab8500-ext: Make the return type of ab8500_ext_regulator_exit() void

ab8500_ext_regulator_exit() never fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/ab8500-ext.c b/drivers/regulator/ab8500-ext.c
index 9aee21c..20680f3 100644
--- a/drivers/regulator/ab8500-ext.c
+++ b/drivers/regulator/ab8500-ext.c
@@ -394,7 +394,7 @@
 	return 0;
 }
 
-int ab8500_ext_regulator_exit(struct platform_device *pdev)
+void ab8500_ext_regulator_exit(struct platform_device *pdev)
 {
 	int i;
 
@@ -407,8 +407,6 @@
 
 		regulator_unregister(info->rdev);
 	}
-
-	return 0;
 }
 
 MODULE_LICENSE("GPL v2");