[janderwald] 47512: [NPFS] - Check if MmGetSystemAddressForMdlSafe failed

Author: janderwald
Date: Tue Jun  1 11:52:16 2010
New Revision: 47512

URL: http://svn.reactos.org/svn/reactos?rev=47512&view=rev
Log:
[NPFS]
- Check if MmGetSystemAddressForMdlSafe failed

Modified:
    trunk/reactos/drivers/filesystems/npfs/rw.c

Modified: trunk/reactos/drivers/filesystems/npfs/rw.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/npfs/rw...
==============================================================================
--- trunk/reactos/drivers/filesystems/npfs/rw.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/npfs/rw.c [iso-8859-1] Tue Jun  1 11:52:16 2010
@@ -781,7 +781,16 @@
     }

Status = STATUS_SUCCESS;
-    Buffer = MmGetSystemAddressForMdl (Irp->MdlAddress);
+    Buffer = MmGetSystemAddressForMdlSafe (Irp->MdlAddress, NormalPagePriority);
+
+    if (!Buffer)
+    {
+        DPRINT("MmGetSystemAddressForMdlSafe failed\n");
+        Status = STATUS_INSUFFICIENT_RESOURCES;
+        Length = 0;
+        goto done;
+
+    }

ExAcquireFastMutex(&ReaderCcb->DataListLock);