1 files changed, 12 insertions, 1 deletions
diff --git a/os_specific/service_layers/oswinxf.c b/os_specific/service_layers/oswinxf.c
index a931c7f22069..8e65e6211d1d 100644
--- a/os_specific/service_layers/oswinxf.c
+++ b/os_specific/service_layers/oswinxf.c
@@ -1162,6 +1162,8 @@ AcpiOsReadPort (
     UINT32                  *Value,
     UINT32                  Width)
 {
+    ACPI_FUNCTION_NAME (OsReadPort);
+
 
     switch (Width)
     {
@@ -1178,6 +1180,7 @@ AcpiOsReadPort (
         break;
 
     default:
+        ACPI_ERROR ((AE_INFO, "Bad width parameter: %X", Width));
         return (AE_BAD_PARAMETER);
     }
 
@@ -1205,8 +1208,16 @@ AcpiOsWritePort (
     UINT32                  Value,
     UINT32                  Width)
 {
+    ACPI_FUNCTION_NAME (OsWritePort);
 
-    return (AE_OK);
+
+    if ((Width == 8) || (Width == 16) || (Width == 32))
+    {
+        return (AE_OK);
+    }
+
+    ACPI_ERROR ((AE_INFO, "Bad width parameter: %X", Width));
+    return (AE_BAD_PARAMETER);
 }