[PATCH v1] ACPI: property: Use acpi_dev_parent()

From: Rafael J. Wysocki
Date: Mon Aug 29 2022 - 12:12:43 EST


From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

After introducing acpi_dev_parent() in commit 62fcb99bdf10 ("ACPI: Drop
parent field from struct acpi_device"), it is better to use it instead
of accessing the dev.parent field in struct acpi_device directly.

Modify acpi_node_get_parent() accordingly.

Suggested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/acpi/property.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

Index: linux-pm/drivers/acpi/property.c
===================================================================
--- linux-pm.orig/drivers/acpi/property.c
+++ linux-pm/drivers/acpi/property.c
@@ -1269,10 +1269,11 @@ acpi_node_get_parent(const struct fwnode
return to_acpi_data_node(fwnode)->parent;
}
if (is_acpi_device_node(fwnode)) {
- struct device *dev = to_acpi_device_node(fwnode)->dev.parent;
+ struct acpi_device *parent;

- if (dev)
- return acpi_fwnode_handle(to_acpi_device(dev));
+ parent = acpi_dev_parent(to_acpi_device_node(fwnode));
+ if (parent)
+ return acpi_fwnode_handle(parent);
}

return NULL;