fix warning on optimized builds

Modified: trunk/reactos/ntoskrnl/ex/mutant.c

--- trunk/reactos/ntoskrnl/ex/mutant.c	2005-03-28 16:51:23 UTC (rev 14366)
+++ trunk/reactos/ntoskrnl/ex/mutant.c	2005-03-28 17:25:19 UTC (rev 14367)
@@ -294,16 +294,19 @@

                 IN PLONG PreviousCount  OPTIONAL)
 {
     PKMUTANT Mutant;

-    KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();

+    KPROCESSOR_MODE PreviousMode;

     NTSTATUS Status = STATUS_SUCCESS;
    
     PAGED_CODE();

+    
+    PreviousMode = ExGetPreviousMode();
+    

     DPRINT("NtReleaseMutant(MutantHandle 0%x PreviousCount 0%x)\n", 
             MutantHandle, 
             PreviousCount);
 
     /* Check Output Safety */

-    if(PreviousMode == UserMode && PreviousCount) {

+    if(PreviousMode != KernelMode && PreviousCount) {

         
         _SEH_TRY {
             
@@ -330,7 +333,7 @@

     /* Check for Success and release if such */
     if(NT_SUCCESS(Status)) {
         

-        LONG Prev;

+        LONG Prev = 0;

         
         /* release the mutant. doing so might raise an exception which we're
            required to catch! */