Cache the value of the parent node so we don't have to look it up twice.
Cc: Robert Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Alex Chiang <achiang@xxxxxx>
---
drivers/acpi/acpica/nsxfobj.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index 1c7efc1..1cd8f15 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -161,7 +161,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_type)
******************************************************************************/
acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
{
- struct acpi_namespace_node *node;
+ struct acpi_namespace_node *node, *parent_node;
acpi_status status;
if (!ret_handle) {
@@ -189,12 +189,12 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
/* Get the parent entry */
- *ret_handle =
- acpi_ns_convert_entry_to_handle(acpi_ns_get_parent_node(node));
+ parent_node = acpi_ns_get_parent_node(node);
+ *ret_handle = acpi_ns_convert_entry_to_handle(parent_node);
/* Return exception if parent is null */
- if (!acpi_ns_get_parent_node(node)) {
+ if (!parent_node) {
status = AE_NULL_ENTRY;
}
--
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