[PATCH 02/10] platform/x86: toshiba_acpi: use devm_add_action_or_reset() for singleton clear

[Alexandru Ardelean]

The only reason to do this is to enforce the ordering of deinitialization,
when the conversion of the device-managed functions is done.

The singleton object should be cleared right before it is free'd.

Signed-off-by: Alexandru Ardelean <aardel...@deviqon.com>
---
 drivers/platform/x86/toshiba_acpi.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c 
b/drivers/platform/x86/toshiba_acpi.c
index 6d298810b7bf..c5284601bc2a 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -2995,9 +2995,6 @@ static int toshiba_acpi_remove(struct acpi_device 
*acpi_dev)
                rfkill_destroy(dev->wwan_rfk);
        }
 
-       if (toshiba_acpi)
-               toshiba_acpi = NULL;
-
        return 0;
 }
 
@@ -3012,6 +3009,11 @@ static const char *find_hci_method(acpi_handle handle)
        return NULL;
 }
 
+static void toshiba_acpi_singleton_clear(void *data)
+{
+       toshiba_acpi = NULL;
+}
+
 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
 {
        struct device *parent = &acpi_dev->dev;
@@ -3035,6 +3037,13 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
        dev = devm_kzalloc(parent, sizeof(*dev), GFP_KERNEL);
        if (!dev)
                return -ENOMEM;
+
+       ret = devm_add_action_or_reset(parent,
+                                      toshiba_acpi_singleton_clear,
+                                      NULL);
+       if (ret)
+               return ret;
+
        dev->acpi_dev = acpi_dev;
        dev->method_hci = hci_method;
        dev->miscdev.minor = MISC_DYNAMIC_MINOR;
-- 
2.30.2