[janderwald] 47713: [KS] - Fix memory leak

Author: janderwald
Date: Wed Jun  9 14:16:05 2010
New Revision: 47713

URL: http://svn.reactos.org/svn/reactos?rev=47713&view=rev
Log:
[KS]
- Fix memory leak

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

Modified: trunk/reactos/drivers/ksfilter/ks/topology.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/ksfilter/ks/topolo…
==============================================================================
--- trunk/reactos/drivers/ksfilter/ks/topology.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/ksfilter/ks/topology.c [iso-8859-1] Wed Jun  9 14:16:05 2010
@@ -205,24 +205,27 @@
             {
                 Irp->IoStatus.Information = 0;
                 Status = STATUS_INSUFFICIENT_RESOURCES;
+                RtlFreeUnicodeString(&GuidString);
                 break;
             }
 
             RtlAppendUnicodeStringToString(&KeyName, &LocalMachine);
             RtlAppendUnicodeStringToString(&KeyName, &GuidString);
 
+            RtlFreeUnicodeString(&GuidString);
 
             InitializeObjectAttributes(&ObjectAttributes, &KeyName,
OBJ_CASE_INSENSITIVE, NULL, NULL);
             Status = ZwOpenKey(&hKey, GENERIC_READ, &ObjectAttributes);
 
+            ExFreePool(KeyName.Buffer);
+
             if (!NT_SUCCESS(Status))
             {
                 DPRINT1("ZwOpenKey() failed with status 0x%08lx\n", Status);
-                ExFreePool(KeyName.Buffer);
-                Irp->IoStatus.Information = 0;
-                break;
-            }
-            ExFreePool(KeyName.Buffer);
+                Irp->IoStatus.Information = 0;
+                break;
+            }
+
             Status = ZwQueryValueKey(hKey, &Name, KeyValuePartialInformation, NULL,
0, &Size);
             if (!NT_SUCCESS(Status) && Status != STATUS_BUFFER_TOO_SMALL)
             {
@@ -231,6 +234,7 @@
                 break;
             }
 
+            ASSERT(Size);
             KeyInfo = (PKEY_VALUE_PARTIAL_INFORMATION) ExAllocatePool(NonPagedPool,
Size);
             if (!KeyInfo)
             {