[hbelusca] 68816: [NTVDM]: Correctly set last (and returned) errors when we fail at reallocating a memory block (in case this is the last block), or if the block is invalid. Do the same stuff also ...

Author: hbelusca
Date: Tue Aug 25 01:48:17 2015
New Revision: 68816
URL: http://svn.reactos.org/svn/reactos?rev=68816&view=rev
Log:
[NTVDM]: Correctly set last (and returned) errors when we fail at reallocating a memory
block (in case this is the last block), or if the block is invalid. Do the same stuff also
for few other memory functions.
Modified:
    trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c
    trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/memory.c
Modified: trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/dos/…
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c     [iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/dos.c     [iso-8859-1] Tue Aug 25
01:48:17 2015
@@ -1314,7 +1314,7 @@
             else
             {
                 Stack[STACK_FLAGS] |= EMULATOR_FLAG_CF;
-                setAX(ERROR_ARENA_TRASHED);
+                setAX(Sda->LastErrorCode);
             }
             break;
Modified: trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/memory.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/dos/…
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/memory.c  [iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/dos/dos32krnl/memory.c  [iso-8859-1] Tue Aug 25
01:48:17 2015
@@ -109,7 +109,7 @@
         if (!ValidateMcb(NextMcb))
         {
             DPRINT1("The DOS memory arena is corrupted!\n");
-            // Sda->LastErrorCode = ERROR_ARENA_TRASHED;
+            Sda->LastErrorCode = ERROR_ARENA_TRASHED;
             return;
         }
@@ -297,8 +297,8 @@
     /* Make sure this is a valid and allocated block */
     if (BlockData == 0 || !ValidateMcb(Mcb) || Mcb->OwnerPsp == 0)
     {
+        Sda->LastErrorCode = ERROR_INVALID_BLOCK;
         Success = FALSE;
-        Sda->LastErrorCode = ERROR_INVALID_HANDLE;
         goto Done;
     }
@@ -310,6 +310,8 @@
         /* We can't expand the last block */
         if (Mcb->BlockType == 'Z')
         {
+            DPRINT("Cannot expand memory block 0x%04X: this is the last block (size
0x%04X)!\n", Segment, Mcb->Size);
+            Sda->LastErrorCode = ERROR_NOT_ENOUGH_MEMORY;
             Success = FALSE;
             goto Done;
         }
@@ -416,7 +418,11 @@
     PDOS_MCB Mcb = SEGMENT_TO_MCB(BlockData - 1);
     DPRINT("DosFreeMemory: BlockData 0x%04X\n", BlockData);
-    if (BlockData == 0) return FALSE;
+    if (BlockData == 0)
+    {
+        Sda->LastErrorCode = ERROR_INVALID_BLOCK;
+        return FALSE;
+    }
     DosMemValidate();
@@ -424,6 +430,7 @@
     if (!ValidateMcb(Mcb))
     {
         DPRINT("MCB block type '%c' not valid!\n", Mcb->BlockType);
+        Sda->LastErrorCode = ERROR_INVALID_BLOCK;
         return FALSE;
     }