[tfaber] 73856: [KS] - Avoid leaking AllocatorFraming in KsCreateDefaultAllocatorEx. Patch by Sebastian Gasiorek CORE-12797 #resolve

Author: tfaber
Date: Mon Feb 20 11:35:24 2017
New Revision: 73856

URL: http://svn.reactos.org/svn/reactos?rev=73856&view=rev
Log:
[KS]
- Avoid leaking AllocatorFraming in KsCreateDefaultAllocatorEx. Patch by Sebastian Gasiorek
CORE-12797 #resolve

Modified:
    trunk/reactos/drivers/ksfilter/ks/allocators.c

Modified: trunk/reactos/drivers/ksfilter/ks/allocators.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/allocat...
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/allocators.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/allocators.c	[iso-8859-1] Mon Feb 20 11:35:24 2017
@@ -593,20 +593,27 @@

/* check the valid file alignment */
     if (AllocatorFraming->FileAlignment > (PAGE_SIZE-1))
+    {
+        FreeItem(AllocatorFraming);
         return STATUS_INVALID_PARAMETER;
+    }

/* allocate allocator struct */
     Allocator = AllocateItem(NonPagedPool, sizeof(ALLOCATOR));
     if (!Allocator)
+    {
+        FreeItem(AllocatorFraming);
         return STATUS_INSUFFICIENT_RESOURCES;
+    }

/* allocate object header */

Status = KsAllocateObjectHeader((KSOBJECT_HEADER*)&Allocator->Header, 0, NULL, Irp, &DispatchTable);
     if (!NT_SUCCESS(Status))
     {
-         FreeItem(Allocator);
-         return Status;
+        FreeItem(AllocatorFraming);
+        FreeItem(Allocator);
+        return Status;
     }

/* set allocator type in object header */
@@ -652,6 +659,7 @@

/* backup allocator framing */
     RtlMoveMemory(&Allocator->Status.Framing, AllocatorFraming, sizeof(KSALLOCATOR_FRAMING));
+    FreeItem(AllocatorFraming);

return Status;
 }