[cgutman] 41207: - Fix handling of nonpaged contiguous memory in NdisAllocateMemory and NdisFreeMemory

Author: cgutman
Date: Sat May 30 21:12:45 2009
New Revision: 41207

URL: http://svn.reactos.org/svn/reactos?rev=41207&view=rev
Log:
 - Fix handling of nonpaged contiguous memory in NdisAllocateMemory and NdisFreeMemory

Modified:
    trunk/reactos/drivers/network/ndis/ndis/memory.c

Modified: trunk/reactos/drivers/network/ndis/ndis/memory.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/ndis/ndis/…
==============================================================================
--- trunk/reactos/drivers/network/ndis/ndis/memory.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/ndis/ndis/memory.c [iso-8859-1] Sat May 30 21:12:45
2009
@@ -74,26 +74,26 @@
 {
   NDIS_DbgPrint(MAX_TRACE, ("Called.\n"));
 
-  if (MemoryFlags & NDIS_MEMORY_NONCACHED)
-    {
+  if (MemoryFlags & NDIS_MEMORY_CONTIGUOUS)
+  {
+      /* Allocate contiguous memory (possibly noncached) */
+      *VirtualAddress = MmAllocateContiguousMemorySpecifyCache(Length,
+                                                              
RtlConvertUlongToLargeInteger(0),
+                                                               HighestAcceptableAddress,
+                                                              
RtlConvertUlongToLargeInteger(0),
+                                                               (MemoryFlags &
NDIS_MEMORY_NONCACHED) ? MmNonCached : MmCached);
+  }
+  else if (MemoryFlags & NDIS_MEMORY_NONCACHED)
+  {
+      /* Allocate noncached noncontiguous memory */
       *VirtualAddress = MmAllocateNonCachedMemory(Length);
-      if(!*VirtualAddress)
-        return NDIS_STATUS_FAILURE;
-
-      return NDIS_STATUS_SUCCESS;
-    }
-
-  if (MemoryFlags & NDIS_MEMORY_CONTIGUOUS)
-    {
-      *VirtualAddress = MmAllocateContiguousMemory(Length, HighestAcceptableAddress);
-      if(!*VirtualAddress)
-        return NDIS_STATUS_FAILURE;
-
-      return NDIS_STATUS_SUCCESS;
-    }
-
-  /* Plain nonpaged memory */
-  *VirtualAddress = ExAllocatePool(NonPagedPool, Length);
+  }
+  else
+  {
+      /* Allocate plain nonpaged memory */
+      *VirtualAddress = ExAllocatePool(NonPagedPool, Length);
+  }
+
   if (!*VirtualAddress)
     return NDIS_STATUS_FAILURE;
 
@@ -120,19 +120,23 @@
 {
   NDIS_DbgPrint(MAX_TRACE, ("Called.\n"));
 
-  if (MemoryFlags & NDIS_MEMORY_NONCACHED)
-    {
+  if (MemoryFlags & NDIS_MEMORY_CONTIGUOUS)
+  {
+      /* Free contiguous memory (possibly noncached) */
+      MmFreeContiguousMemorySpecifyCache(VirtualAddress,
+                                         Length,
+                                         (MemoryFlags & NDIS_MEMORY_NONCACHED) ?
MmNonCached : MmCached);
+  }
+  else if (MemoryFlags & NDIS_MEMORY_NONCACHED)
+  {
+      /* Free noncached noncontiguous memory */
       MmFreeNonCachedMemory(VirtualAddress, Length);
-      return;
-    }
-
-  if (MemoryFlags & NDIS_MEMORY_CONTIGUOUS)
-    {
-      MmFreeContiguousMemory(VirtualAddress);
-      return;
-    }
-
-  ExFreePool(VirtualAddress);
+  }
+  else
+  {
+      /* Free nonpaged pool */
+      ExFreePool(VirtualAddress);
+  }
 }