MdeModulePkg ScsiDiskDxe: Modify WriteBlocks(Ex)() to follow UEFI spec

[mirror_edk2.git] / MdeModulePkg / Bus / Scsi / ScsiDiskDxe / ScsiDisk.c

diff --git a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
index a85cc94ae6479dad2b13d74dc756b470d1541864..3e19fad064117584be10701ba7a1d8c100ed3e7a 100644 (file)
--- a/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
+++ b/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDisk.c
@@ -692,6 +692,11 @@ ScsiDiskWriteBlocks (
     goto Done;\r
   }\r
 \r
+  if (Media->ReadOnly) {\r
+    Status = EFI_WRITE_PROTECTED;\r
+    goto Done;\r
+  }\r
+\r
   if (BufferSize == 0) {\r
     Status = EFI_SUCCESS;\r
     goto Done;\r
@@ -1048,6 +1053,11 @@ ScsiDiskWriteBlocksEx (
     goto Done;\r
   }\r
 \r
+  if (Media->ReadOnly) {\r
+    Status = EFI_WRITE_PROTECTED;\r
+    goto Done;\r
+  }\r
+\r
   if (BufferSize == 0) {\r
     if ((Token != NULL) && (Token->Event != NULL)) {\r
       Token->TransactionStatus = EFI_SUCCESS;\r