1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 0c789224d40d..f774c65ecb8b 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -287,6 +287,7 @@ EXPORT_SYMBOL_GPL(acpi_unbind_one);
 static int acpi_platform_notify(struct device *dev)
 {
         struct acpi_bus_type *type = acpi_get_bus_type(dev);
+        struct acpi_device *adev;
         int ret;
 
         ret = acpi_bind_one(dev, NULL);
@@ -303,9 +304,14 @@ static int acpi_platform_notify(struct device *dev)
                 if (ret)
                         goto out;
         }
+        adev = ACPI_COMPANION(dev);
+        if (!adev)
+                goto out;
 
         if (type && type->setup)
                 type->setup(dev);
+        else if (adev->handler && adev->handler->bind)
+                adev->handler->bind(dev);
 
  out:
 #if ACPI_GLUE_DEBUG
@@ -324,11 +330,17 @@ static int acpi_platform_notify(struct device *dev)
 
 static int acpi_platform_notify_remove(struct device *dev)
 {
+        struct acpi_device *adev = ACPI_COMPANION(dev);
         struct acpi_bus_type *type;
 
+        if (!adev)
+                return 0;
+
         type = acpi_get_bus_type(dev);
         if (type && type->cleanup)
                 type->cleanup(dev);
+        else if (adev->handler && adev->handler->unbind)
+                adev->handler->unbind(dev);
 
         acpi_unbind_one(dev);
         return 0;