1 files changed, 5 insertions, 5 deletions
diff --git a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
index 6b8257e1b6..a3c0670c98 100644
--- a/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
+++ b/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaBus.c
@@ -842,6 +842,11 @@ BlockIoReadWrite (
   //
   // Check parameters.
   //
+  Media = This->Media;
+  if (MediaId != Media->MediaId) {
+    return EFI_MEDIA_CHANGED;
+  }
+
   if (Buffer == NULL) {
     return EFI_INVALID_PARAMETER;
   }
@@ -850,11 +855,6 @@ BlockIoReadWrite (
     return EFI_SUCCESS;
   }
 
-  Media = This->Media;
-  if (MediaId != Media->MediaId) {
-    return EFI_MEDIA_CHANGED;
-  }
-
   BlockSize = Media->BlockSize;
   if ((BufferSize % BlockSize) != 0) {
     return EFI_BAD_BUFFER_SIZE;