[sginsberg] 42929: - Make use of _SEH2_YIELD in Mm

Author: sginsberg
Date: Mon Aug 24 22:39:23 2009
New Revision: 42929

URL: http://svn.reactos.org/svn/reactos?rev=42929&view=rev
Log:
- Make use of _SEH2_YIELD in Mm

Modified:
    trunk/reactos/ntoskrnl/mm/anonmem.c
    trunk/reactos/ntoskrnl/mm/pagefile.c
    trunk/reactos/ntoskrnl/mm/section.c
    trunk/reactos/ntoskrnl/mm/virtual.c

Modified: trunk/reactos/ntoskrnl/mm/anonmem.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/anonmem.c?rev=…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/anonmem.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/anonmem.c [iso-8859-1] Mon Aug 24 22:39:23 2009
@@ -659,9 +659,8 @@
    }
    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
    {
-      /* Get the exception code */
-      Status = _SEH2_GetExceptionCode();
-      _SEH2_YIELD(return Status);
+      /* Return the exception code */
+      _SEH2_YIELD(return _SEH2_GetExceptionCode());
    }
    _SEH2_END;
 
@@ -949,7 +948,7 @@
  */
 {
    MEMORY_AREA* MemoryArea;
-   NTSTATUS Status = STATUS_SUCCESS;
+   NTSTATUS Status;
    PEPROCESS Process;
    PMMSUPPORT AddressSpace;
    PVOID BaseAddress;
@@ -967,7 +966,7 @@
         return STATUS_INVALID_PARAMETER_4;
     }
 
-    if(ExGetPreviousMode() != KernelMode)
+    if (ExGetPreviousMode() != KernelMode)
     {
         _SEH2_TRY
         {
@@ -977,11 +976,10 @@
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
-            /* Get exception code */
-            Status = _SEH2_GetExceptionCode();
+            /* Return the exception code */
+            _SEH2_YIELD(return _SEH2_GetExceptionCode());
         }
         _SEH2_END;
-        if (!NT_SUCCESS(Status)) return Status;
     }
 
    BaseAddress = (PVOID)PAGE_ROUND_DOWN((*PBaseAddress));

Modified: trunk/reactos/ntoskrnl/mm/pagefile.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/pagefile.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/pagefile.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/pagefile.c [iso-8859-1] Mon Aug 24 22:39:23 2009
@@ -519,7 +519,7 @@
                    IN PLARGE_INTEGER MaximumSize,
                    IN ULONG Reserved)
 {
-   NTSTATUS Status = STATUS_SUCCESS;
+   NTSTATUS Status;
    OBJECT_ATTRIBUTES ObjectAttributes;
    HANDLE FileHandle;
    IO_STATUS_BLOCK IoStatus;
@@ -560,14 +560,10 @@
       }
       _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
       {
-         Status = _SEH2_GetExceptionCode();
+          /* Return the exception code */
+          _SEH2_YIELD(return _SEH2_GetExceptionCode());
       }
       _SEH2_END;
-
-      if (!NT_SUCCESS(Status))
-      {
-         return Status;
-      }
    }
    else
    {

Modified: trunk/reactos/ntoskrnl/mm/section.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/section.c?rev=…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/section.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/section.c [iso-8859-1] Mon Aug 24 22:39:23 2009
@@ -3496,7 +3496,7 @@
    LARGE_INTEGER SafeMaximumSize;
    PVOID SectionObject;
    KPROCESSOR_MODE PreviousMode;
-   NTSTATUS Status = STATUS_SUCCESS;
+   NTSTATUS Status;
 
    PreviousMode = ExGetPreviousMode();
 
@@ -3514,14 +3514,10 @@
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
-       Status = _SEH2_GetExceptionCode();
+         /* Return the exception code */
+         _SEH2_YIELD(return _SEH2_GetExceptionCode());
      }
      _SEH2_END;
-
-     if(!NT_SUCCESS(Status))
-     {
-       return Status;
-     }
    }
 
    Status = MmCreateSection(&SectionObject,
@@ -3570,7 +3566,7 @@
 {
    HANDLE hSection;
    KPROCESSOR_MODE PreviousMode;
-   NTSTATUS Status = STATUS_SUCCESS;
+   NTSTATUS Status;
 
    PreviousMode = ExGetPreviousMode();
 
@@ -3582,14 +3578,10 @@
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
-       Status = _SEH2_GetExceptionCode();
+        /* Return the exception code */
+        _SEH2_YIELD(return _SEH2_GetExceptionCode());
      }
      _SEH2_END;
-
-     if(!NT_SUCCESS(Status))
-     {
-       return Status;
-     }
    }
 
    Status = ObOpenObjectByName(ObjectAttributes,
@@ -3729,7 +3721,7 @@
    PEPROCESS Process;
    KPROCESSOR_MODE PreviousMode;
    PMMSUPPORT AddressSpace;
-   NTSTATUS Status = STATUS_SUCCESS;
+   NTSTATUS Status;
    ULONG tmpProtect;
    ACCESS_MASK DesiredAccess;
 
@@ -3779,14 +3771,10 @@
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
-       Status = _SEH2_GetExceptionCode();
+         /* Return the exception code */
+         _SEH2_YIELD(return _SEH2_GetExceptionCode());
      }
      _SEH2_END;
-
-     if(!NT_SUCCESS(Status))
-     {
-       return Status;
-     }
    }
    else
    {
@@ -4263,7 +4251,7 @@
 {
    PROS_SECTION_OBJECT Section;
    KPROCESSOR_MODE PreviousMode;
-   NTSTATUS Status = STATUS_SUCCESS;
+   NTSTATUS Status;
    PAGED_CODE();
 
    PreviousMode = ExGetPreviousMode();
@@ -4392,7 +4380,7 @@
    LARGE_INTEGER SafeNewMaximumSize;
    PROS_SECTION_OBJECT Section;
    KPROCESSOR_MODE PreviousMode;
-   NTSTATUS Status = STATUS_SUCCESS;
+   NTSTATUS Status;
 
    PreviousMode = ExGetPreviousMode();
 
@@ -4406,14 +4394,10 @@
      }
      _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
      {
-       Status = _SEH2_GetExceptionCode();
+        /* Return the exception code */
+        _SEH2_YIELD(return _SEH2_GetExceptionCode());
      }
      _SEH2_END;
-
-     if(!NT_SUCCESS(Status))
-     {
-       return Status;
-     }
    }
 
    Status = ObReferenceObjectByHandle(SectionHandle,

Modified: trunk/reactos/ntoskrnl/mm/virtual.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/virtual.c?rev=…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/virtual.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/virtual.c [iso-8859-1] Mon Aug 24 22:39:23 2009
@@ -70,7 +70,6 @@
     KAPC_STATE ApcState;
     BOOLEAN HaveBadAddress;
     ULONG_PTR BadAddress;
-    NTSTATUS Status = STATUS_SUCCESS;
     PAGED_CODE();
 
     /* Calculate the maximum amount of data to move */
@@ -165,8 +164,7 @@
             if ((FailedInProbe) || (FailedInMapping))
             {
                 /* Exit */
-                Status = _SEH2_GetExceptionCode();
-                _SEH2_YIELD(return Status);
+                _SEH2_YIELD(return _SEH2_GetExceptionCode());
             }
 
             /* Otherwise, we failed  probably during the move */
@@ -182,12 +180,9 @@
             }
 
             /* Return partial copy */
-            Status = STATUS_PARTIAL_COPY;
+            _SEH2_YIELD(return STATUS_PARTIAL_COPY);
         }
         _SEH2_END;
-
-        /* Check for SEH status */
-        if (Status != STATUS_SUCCESS) return Status;
 
         /* Detach from target */
         KeUnstackDetachProcess(&ApcState);
@@ -225,7 +220,6 @@
     KAPC_STATE ApcState;
     BOOLEAN HaveBadAddress;
     ULONG_PTR BadAddress;
-    NTSTATUS Status = STATUS_SUCCESS;
     PAGED_CODE();
 
     /* Calculate the maximum amount of data to move */
@@ -313,8 +307,7 @@
             if (FailedInProbe)
             {
                 /* Exit */
-                Status = _SEH2_GetExceptionCode();
-                _SEH2_YIELD(return Status);
+                _SEH2_YIELD(return _SEH2_GetExceptionCode());
             }
 
             /* Otherwise, we failed  probably during the move */
@@ -330,12 +323,9 @@
             }
 
             /* Return partial copy */
-            Status = STATUS_PARTIAL_COPY;
+            _SEH2_YIELD(return STATUS_PARTIAL_COPY);
         }
         _SEH2_END;
-
-        /* Check for SEH status */
-        if (Status != STATUS_SUCCESS) return Status;
 
         /* Detach from target */
         KeUnstackDetachProcess(&ApcState);
@@ -779,7 +769,7 @@
 {
     KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
     PEPROCESS Process;
-    NTSTATUS Status = STATUS_SUCCESS;
+    NTSTATUS Status;
     SIZE_T BytesRead = 0;
     PAGED_CODE();
 
@@ -804,13 +794,10 @@
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
-            /* Get exception code */
-            Status = _SEH2_GetExceptionCode();
+            /* Return the exception code */
+            _SEH2_YIELD(return _SEH2_GetExceptionCode());
         }
         _SEH2_END;
-
-        /* Return if we failed */
-        if (!NT_SUCCESS(Status)) return Status;
     }
 
     /* Reference the process */
@@ -866,7 +853,7 @@
 {
     KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
     PEPROCESS Process;
-    NTSTATUS Status = STATUS_SUCCESS;
+    NTSTATUS Status;
     ULONG BytesWritten = 0;
     PAGED_CODE();
 
@@ -891,13 +878,10 @@
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
-            /* Get exception code */
-            Status = _SEH2_GetExceptionCode();
+            /* Return the exception code */
+            _SEH2_YIELD(return _SEH2_GetExceptionCode());
         }
         _SEH2_END;
-
-        /* Return if we failed */
-        if (!NT_SUCCESS(Status)) return Status;
     }
 
     /* Reference the process */
@@ -957,7 +941,7 @@
     PVOID BaseAddress = NULL;
     SIZE_T NumberOfBytesToProtect = 0;
     KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
-    NTSTATUS Status = STATUS_SUCCESS;
+    NTSTATUS Status;
     PAGED_CODE();
 
     /* Check for valid protection flags */
@@ -991,13 +975,10 @@
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
-            /* Get exception code */
-            Status = _SEH2_GetExceptionCode();
+            /* Return the exception code */
+            _SEH2_YIELD(return _SEH2_GetExceptionCode());
         }
         _SEH2_END;
-
-        /* Return on exception */
-        if (!NT_SUCCESS(Status)) return Status;
     }
     else
     {
@@ -1065,7 +1046,7 @@
                      IN SIZE_T Length,
                      OUT PSIZE_T UnsafeResultLength)
 {
-    NTSTATUS Status = STATUS_SUCCESS;
+    NTSTATUS Status;
     SIZE_T ResultLength = 0;
     KPROCESSOR_MODE PreviousMode;
     WCHAR ModuleFileNameBuffer[MAX_PATH] = {0};
@@ -1098,14 +1079,10 @@
         }
         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
         {
-            Status = _SEH2_GetExceptionCode();
+            /* Return the exception code */
+            _SEH2_YIELD(return _SEH2_GetExceptionCode());
         }
         _SEH2_END;
-
-        if (!NT_SUCCESS(Status))
-        {
-            return Status;
-        }
     }
 
     if (Address >= MmSystemRangeStart)