ACPI / mm: use NUMA_NO_NODE

Use more appropriate NUMA_NO_NODE instead of -1

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2 files changed, 3 insertions, 3 deletions

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 999adb5499c7..c00a3a73409b 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -281,7 +281,7 @@ static void acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
                 if (!info->enabled)
                         continue;
 
-                if (nid < 0)
+                if (nid == NUMA_NO_NODE)
                         nid = memory_add_physaddr_to_nid(info->start_addr);
 
                 acpi_unbind_memory_blocks(info, handle);
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 2e82e5d76930..a2343a1d9e0b 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -73,7 +73,7 @@ int acpi_map_pxm_to_node(int pxm)
 {
         int node = pxm_to_node_map[pxm];
 
-        if (node < 0) {
+        if (node == NUMA_NO_NODE) {
                 if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
                         return NUMA_NO_NODE;
                 node = first_unset_node(nodes_found_map);
@@ -334,7 +334,7 @@ int acpi_get_pxm(acpi_handle h)
 
 int acpi_get_node(acpi_handle *handle)
 {
-        int pxm, node = -1;
+        int pxm, node = NUMA_NO_NODE;
 
         pxm = acpi_get_pxm(handle);
         if (pxm >= 0 && pxm < MAX_PXM_DOMAINS)