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-rw-r--r--arch/x86_64/mm/srat.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 9f69d28652f..d96c701dbed 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -23,15 +23,16 @@ static struct acpi_table_slit *acpi_slit;
static nodemask_t nodes_parsed __initdata;
static nodemask_t nodes_found __initdata;
static struct node nodes[MAX_NUMNODES] __initdata;
-static __u8 pxm2node[256] = { [0 ... 255] = 0xff };
+static u8 pxm2node[256] = { [0 ... 255] = 0xff };
static int node_to_pxm(int n);
int pxm_to_node(int pxm)
{
if ((unsigned)pxm >= 256)
- return 0;
- return pxm2node[pxm];
+ return -1;
+ /* Extend 0xff to (int)-1 */
+ return (signed char)pxm2node[pxm];
}
static __init int setup_node(int pxm)