--- zzzz-none-000/linux-3.10.107/drivers/acpi/acpica/nsalloc.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/acpi/acpica/nsalloc.c 2021-02-04 17:41:59.000000000 +0000 @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2013, Intel Corp. + * Copyright (C) 2000 - 2015, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -106,6 +106,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) { union acpi_operand_object *obj_desc; + union acpi_operand_object *next_desc; ACPI_FUNCTION_NAME(ns_delete_node); @@ -114,12 +115,13 @@ acpi_ns_detach_object(node); /* - * Delete an attached data object if present (an object that was created - * and attached via acpi_attach_data). Note: After any normal object is - * detached above, the only possible remaining object is a data object. + * Delete an attached data object list if present (objects that were + * attached via acpi_attach_data). Note: After any normal object is + * detached above, the only possible remaining object(s) are data + * objects, in a linked list. */ obj_desc = node->object; - if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { + while (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { /* Invoke the attached data deletion handler if present */ @@ -127,7 +129,15 @@ obj_desc->data.handler(node, obj_desc->data.pointer); } + next_desc = obj_desc->common.next_object; acpi_ut_remove_reference(obj_desc); + obj_desc = next_desc; + } + + /* Special case for the statically allocated root node */ + + if (node == acpi_gbl_root_node) { + return; } /* Now we can delete the node */