ACPICA: Executer: Fix trivial issues in acpi_get_serial_access_bytes()

This patch fixes trivial issues in acpi_get_serial_access_bytes(), no real
functional bugs. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index 12878e1982f7..1ff42c07b42b 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -56,7 +56,7 @@ acpi_ex_get_serial_access_length(u32 accessor_type, u32 access_length);
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_get_serial_access_bytes
+ * FUNCTION:    acpi_ex_get_serial_access_length
  *
  * PARAMETERS:  accessor_type   - The type of the protocol indicated by region
  *                                field access attributes
@@ -103,7 +103,7 @@ acpi_ex_get_serial_access_length(u32 accessor_type, u32 access_length)
         case AML_FIELD_ATTRIB_BLOCK_CALL:
         default:
 
-                length = ACPI_GSBUS_BUFFER_SIZE;
+                length = ACPI_GSBUS_BUFFER_SIZE - 2;
                 break;
         }