ACPI: video_device_list corruption

[mirror_ubuntu-bionic-kernel.git] / drivers / acpi / numa.c

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 6c44b522f4d3bccb83ec8f26e87d88b614bd9683..ab04d848b19d9c2c42553e502e736119e4b6ff61 100644 (file)
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -36,8 +36,6 @@
 ACPI_MODULE_NAME("numa");
 
 static nodemask_t nodes_found_map = NODE_MASK_NONE;
-#define PXM_INVAL      -1
-#define NID_INVAL      -1
 
 /* maps to convert between proximity domain and logical node ID */
 static int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS]
@@ -59,6 +57,12 @@ int node_to_pxm(int node)
        return node_to_pxm_map[node];
 }
 
+void __acpi_map_pxm_to_node(int pxm, int node)
+{
+       pxm_to_node_map[pxm] = node;
+       node_to_pxm_map[node] = pxm;
+}
+
 int acpi_map_pxm_to_node(int pxm)
 {
        int node = pxm_to_node_map[pxm];
@@ -67,8 +71,7 @@ int acpi_map_pxm_to_node(int pxm)
                if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
                        return NID_INVAL;
                node = first_unset_node(nodes_found_map);
-               pxm_to_node_map[pxm] = node;
-               node_to_pxm_map[node] = pxm;
+               __acpi_map_pxm_to_node(pxm, node);
                node_set(node, nodes_found_map);
        }