x86-64, NUMA: Unify {acpi|amd}_{numa_init|scan_nodes}() arguments and return values

The functions used during NUMA initialization - *_numa_init() and
*_scan_nodes() - have different arguments and return values.  Unify
them such that they all take no argument and return 0 on success and
-errno on failure.  This is in preparation for further NUMA init
cleanups.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 5eb25eb3ea48..3b5c3189fd99 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -274,7 +274,7 @@ acpi_table_parse_srat(enum acpi_srat_type id,
 
 int __init acpi_numa_init(void)
 {
-        int ret = 0;
+        int cnt = 0;
 
         /*
          * Should not limit number with cpu num that is from NR_CPUS or nr_cpus=
@@ -288,7 +288,7 @@ int __init acpi_numa_init(void)
                                      acpi_parse_x2apic_affinity, 0);
                 acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY,
                                      acpi_parse_processor_affinity, 0);
-                ret = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,
+                cnt = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY,
                                             acpi_parse_memory_affinity,
                                             NR_NODE_MEMBLKS);
         }
@@ -297,7 +297,10 @@ int __init acpi_numa_init(void)
         acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit);
 
         acpi_numa_arch_fixup();
-        return ret;
+
+        if (cnt <= 0)
+                return cnt ?: -ENOENT;
+        return 0;
 }
 
 int acpi_get_pxm(acpi_handle h)