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-rw-r--r--arch/i386/kernel/srat.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c
index 516bf5653b02..52b3ed5d2cb5 100644
--- a/arch/i386/kernel/srat.c
+++ b/arch/i386/kernel/srat.c
@@ -137,8 +137,8 @@ static void __init parse_memory_affinity_structure (char *sratp)
 		 "enabled and removable" : "enabled" ) );
 }
 
-#if MAX_NR_ZONES != 3
-#error "MAX_NR_ZONES != 3, chunk_to_zone requires review"
+#if MAX_NR_ZONES != 4
+#error "MAX_NR_ZONES != 4, chunk_to_zone requires review"
 #endif
 /* Take a chunk of pages from page frame cstart to cend and count the number
  * of pages in each zone, returned via zones[].
@@ -327,7 +327,12 @@ int __init get_memcfg_from_srat(void)
 	int tables = 0;
 	int i = 0;
 
-	acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING, rsdp_address);
+	if (ACPI_FAILURE(acpi_find_root_pointer(ACPI_PHYSICAL_ADDRESSING,
+						rsdp_address))) {
+		printk("%s: System description tables not found\n",
+		       __FUNCTION__);
+		goto out_err;
+	}
 
 	if (rsdp_address->pointer_type == ACPI_PHYSICAL_POINTER) {
 		printk("%s: assigning address to rsdp\n", __FUNCTION__);