Jonathan Cameron a62d07e000 ACPI: Remove side effect of partly creating a node in acpi_get_node() ... acpi_get_node() calls acpi_get_pxm() to evaluate the _PXM AML method for entries found in DSDT/SSDT. ACPI 6.3 sec 6.2.14 states "_PXM evaluates to an integer that identifies a device as belonging to a Proximity Domain defined in the System Resource Affinity Table (SRAT)." Hence a _PXM method should not result in creation of a new NUMA node. Before this patch, _PXM could result in partial instantiation of NUMA node, missing elements such as zone lists. A call to devm_kzalloc(), for example, results in a NULL pointer dereference. This patch therefore replaces the acpi_map_pxm_to_node() with a call to pxm_to_node(). Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Reviewed-by: Barry Song <song.bao.hua@hisilicon.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2020-09-24 12:57:38 +02:00
..
hmat.c	ACPI: Rename acpi_map_pxm_to_online_node() to pxm_to_online_node()	2020-09-24 12:57:38 +02:00
Kconfig	ACPI: NUMA: HMAT: Register "soft reserved" memory as an "hmem" device	2019-11-07 15:45:23 +01:00
Makefile	ACPI: NUMA: Establish a new drivers/acpi/numa/ directory	2019-11-07 15:43:38 +01:00
srat.c	ACPI: Remove side effect of partly creating a node in acpi_get_node()	2020-09-24 12:57:38 +02:00