4 files changed, 40 insertions, 14 deletions

diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index c3e841f3cde9..ab0aff3c7d6a 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -365,7 +365,7 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_get_table
+ * FUNCTION:    acpi_get_table_with_size
  *
  * PARAMETERS:  Signature           - ACPI signature of needed table
  *              Instance            - Which instance (for SSDTs)
@@ -377,8 +377,9 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
  *
  *****************************************************************************/
 acpi_status
-acpi_get_table(char *signature,
-               u32 instance, struct acpi_table_header **out_table)
+acpi_get_table_with_size(char *signature,
+               u32 instance, struct acpi_table_header **out_table,
+               acpi_size *tbl_size)
 {
        u32 i;
        u32 j;
@@ -408,6 +409,7 @@ acpi_get_table(char *signature,
                     acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
                 if (ACPI_SUCCESS(status)) {
                         *out_table = acpi_gbl_root_table_list.tables[i].pointer;
+                        *tbl_size = acpi_gbl_root_table_list.tables[i].length;
                 }
 
                 if (!acpi_gbl_permanent_mmap) {
@@ -420,6 +422,15 @@ acpi_get_table(char *signature,
         return (AE_NOT_FOUND);
 }
 
+acpi_status
+acpi_get_table(char *signature,
+               u32 instance, struct acpi_table_header **out_table)
+{
+        acpi_size tbl_size;
+
+        return acpi_get_table_with_size(signature,
+                       instance, out_table, &tbl_size);
+}
 ACPI_EXPORT_SYMBOL(acpi_get_table)
 
 /*******************************************************************************
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 1e35f342957c..eb8980d67368 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -272,14 +272,21 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
 }
 EXPORT_SYMBOL_GPL(acpi_os_map_memory);
 
-void acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
+void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
 {
-        if (acpi_gbl_permanent_mmap) {
+        if (acpi_gbl_permanent_mmap)
                 iounmap(virt);
-        }
+        else
+                __acpi_unmap_table(virt, size);
 }
 EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
 
+void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
+{
+        if (!acpi_gbl_permanent_mmap)
+                __acpi_unmap_table(virt, size);
+}
+
 #ifdef ACPI_FUTURE_USAGE
 acpi_status
 acpi_os_get_physical_address(void *virt, acpi_physical_address * phys)
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 9cc769b587ff..68fd3d292799 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -516,12 +516,12 @@ int acpi_processor_preregister_performance(
                         continue;
                 }
 
-                if (!performance || !percpu_ptr(performance, i)) {
+                if (!performance || !per_cpu_ptr(performance, i)) {
                         retval = -EINVAL;
                         continue;
                 }
 
-                pr->performance = percpu_ptr(performance, i);
+                pr->performance = per_cpu_ptr(performance, i);
                 cpumask_set_cpu(i, pr->performance->shared_cpu_map);
                 if (acpi_processor_get_psd(pr)) {
                         retval = -EINVAL;
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index a8852952fac4..fec1ae36d431 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -181,14 +181,15 @@ acpi_table_parse_entries(char *id,
         struct acpi_subtable_header *entry;
         unsigned int count = 0;
         unsigned long table_end;
+        acpi_size tbl_size;
 
         if (!handler)
                 return -EINVAL;
 
         if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
-                acpi_get_table(id, acpi_apic_instance, &table_header);
+                acpi_get_table_with_size(id, acpi_apic_instance, &table_header, &tbl_size);
         else
-                acpi_get_table(id, 0, &table_header);
+                acpi_get_table_with_size(id, 0, &table_header, &tbl_size);
 
         if (!table_header) {
                 printk(KERN_WARNING PREFIX "%4.4s not present\n", id);
@@ -206,8 +207,10 @@ acpi_table_parse_entries(char *id,
                table_end) {
                 if (entry->type == entry_id
                     && (!max_entries || count++ < max_entries))
-                        if (handler(entry, table_end))
+                        if (handler(entry, table_end)) {
+                                early_acpi_os_unmap_memory((char *)table_header, tbl_size);
                                 return -EINVAL;
+                        }
 
                 entry = (struct acpi_subtable_header *)
                     ((unsigned long)entry + entry->length);
@@ -217,6 +220,7 @@ acpi_table_parse_entries(char *id,
                        "%i found\n", id, entry_id, count - max_entries, count);
         }
 
+        early_acpi_os_unmap_memory((char *)table_header, tbl_size);
         return count;
 }
 
@@ -241,17 +245,19 @@ acpi_table_parse_madt(enum acpi_madt_type id,
 int __init acpi_table_parse(char *id, acpi_table_handler handler)
 {
         struct acpi_table_header *table = NULL;
+        acpi_size tbl_size;
 
         if (!handler)
                 return -EINVAL;
 
         if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
-                acpi_get_table(id, acpi_apic_instance, &table);
+                acpi_get_table_with_size(id, acpi_apic_instance, &table, &tbl_size);
         else
-                acpi_get_table(id, 0, &table);
+                acpi_get_table_with_size(id, 0, &table, &tbl_size);
 
         if (table) {
                 handler(table);
+                early_acpi_os_unmap_memory(table, tbl_size);
                 return 0;
         } else
                 return 1;
@@ -265,8 +271,9 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
 static void __init check_multiple_madt(void)
 {
         struct acpi_table_header *table = NULL;
+        acpi_size tbl_size;
 
-        acpi_get_table(ACPI_SIG_MADT, 2, &table);
+        acpi_get_table_with_size(ACPI_SIG_MADT, 2, &table, &tbl_size);
         if (table) {
                 printk(KERN_WARNING PREFIX
                        "BIOS bug: multiple APIC/MADT found,"
@@ -275,6 +282,7 @@ static void __init check_multiple_madt(void)
                        "If \"acpi_apic_instance=%d\" works better, "
                        "notify linux-acpi@vger.kernel.org\n",
                        acpi_apic_instance ? 0 : 2);
+                early_acpi_os_unmap_memory(table, tbl_size);
 
         } else
                 acpi_apic_instance = 0;