ACPICA: Fix externalize name to complete migration to ACPI_MOVE_NAME

Fix for name segment copy and validation.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 0d3d481ce58e..b5b4cb72a8a8 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -557,8 +557,11 @@ acpi_ns_externalize_name(u32 internal_name_length,
                                 (*converted_name)[j++] = '.';
                         }
 
-                        ACPI_MOVE_NAME(*converted_name, internal_name);
-                        acpi_ut_repair_name(*converted_name);
+                        /* Copy and validate the 4-char name segment */
+
+                        ACPI_MOVE_NAME(&(*converted_name)[j],
+                                       &internal_name[names_index]);
+                        acpi_ut_repair_name(&(*converted_name)[j]);
 
                         j += ACPI_NAME_SIZE;
                         names_index += ACPI_NAME_SIZE;