diff --git a/reactos/drivers/network/tcpip/recmutex/recmutex.c b/reactos/drivers/network/tcpip/recmutex/recmutex.c
index 5951045cb3c..f1a54a6cc21 100644
--- a/reactos/drivers/network/tcpip/recmutex/recmutex.c
+++ b/reactos/drivers/network/tcpip/recmutex/recmutex.c
@@ -6,26 +6,26 @@ VOID RecursiveMutexInit( PRECURSIVE_MUTEX RecMutex ) {
     KeInitializeSpinLock( &RecMutex->SpinLock );
     ExInitializeFastMutex( &RecMutex->Mutex );
     KeInitializeEvent( &RecMutex->StateLockedEvent,
-		       NotificationEvent, FALSE );
+        NotificationEvent, FALSE );
 }
 
 /* NOTE: When we leave, the FAST_MUTEX must have been released.  The result
- * is that we always exit in the same irql as entering */
+* is that we always exit in the same irql as entering */
 SIZE_T RecursiveMutexEnter( PRECURSIVE_MUTEX RecMutex, BOOLEAN ToWrite ) {
     NTSTATUS Status = STATUS_SUCCESS;
     PVOID CurrentThread = KeGetCurrentThread();
     KIRQL CurrentIrql;
 
     /* Wait for the previous user to unlock the RecMutex state.  There might be
-     * multiple waiters waiting to change the state.  We need to check each
-     * time we get the event whether somebody still has the state locked */
+    * multiple waiters waiting to change the state.  We need to check each
+    * time we get the event whether somebody still has the state locked */
 
     if( !RecMutex ) return FALSE;
 
     if( CurrentThread == RecMutex->CurrentThread ||
-	(!ToWrite && !RecMutex->Writer) ) {
-	RecMutex->LockCount++;
-	return TRUE;
+        (!ToWrite && !RecMutex->Writer) ) {
+            RecMutex->LockCount++;
+            return TRUE;
     }
 
     CurrentIrql = KeGetCurrentIrql();
@@ -33,29 +33,29 @@ SIZE_T RecursiveMutexEnter( PRECURSIVE_MUTEX RecMutex, BOOLEAN ToWrite ) {
     ASSERT(CurrentIrql <= DISPATCH_LEVEL);
 
     if( CurrentIrql <= APC_LEVEL ) {
-	ExAcquireFastMutex( &RecMutex->Mutex );
-	RecMutex->OldIrql = CurrentIrql;
-	while( RecMutex->Locked ) {
-	    ExReleaseFastMutex( &RecMutex->Mutex );
-	    Status = KeWaitForSingleObject( &RecMutex->StateLockedEvent,
-					    UserRequest,
-					    KernelMode,
-					    FALSE,
-					    NULL );
-	    ExAcquireFastMutex( &RecMutex->Mutex );
-	}
-	RecMutex->Locked = TRUE;
-	RecMutex->Writer = ToWrite;
-	RecMutex->CurrentThread = CurrentThread;
-	RecMutex->LockCount++;
-	ExReleaseFastMutex( &RecMutex->Mutex );
+        ExAcquireFastMutex( &RecMutex->Mutex );
+        RecMutex->OldIrql = CurrentIrql;
+        while( RecMutex->Locked ) {
+            ExReleaseFastMutex( &RecMutex->Mutex );
+            Status = KeWaitForSingleObject( &RecMutex->StateLockedEvent,
+                UserRequest,
+                KernelMode,
+                FALSE,
+                NULL );
+            ExAcquireFastMutex( &RecMutex->Mutex );
+        }
+        RecMutex->Locked = TRUE;
+        RecMutex->Writer = ToWrite;
+        RecMutex->CurrentThread = CurrentThread;
+        RecMutex->LockCount++;
+        ExReleaseFastMutex( &RecMutex->Mutex );
     } else {
-	KeAcquireSpinLockAtDpcLevel( &RecMutex->SpinLock );
+        KeAcquireSpinLockAtDpcLevel( &RecMutex->SpinLock );
         RecMutex->OldIrql = DISPATCH_LEVEL;
-	RecMutex->Locked = TRUE;
-	RecMutex->Writer = ToWrite;
-	RecMutex->CurrentThread = CurrentThread;
-	RecMutex->LockCount++;
+        RecMutex->Locked = TRUE;
+        RecMutex->Writer = ToWrite;
+        RecMutex->CurrentThread = CurrentThread;
+        RecMutex->LockCount++;
     }
 
     return TRUE;
@@ -67,20 +67,20 @@ VOID RecursiveMutexLeave( PRECURSIVE_MUTEX RecMutex ) {
     RecMutex->LockCount--;
 
     if( !RecMutex->LockCount ) {
-	RecMutex->CurrentThread = NULL;
-	if( RecMutex->OldIrql <= APC_LEVEL ) {
-	    ExAcquireFastMutex( &RecMutex->Mutex );
-	    RecMutex->Locked = FALSE;
-	    RecMutex->Writer = FALSE;
-	    ExReleaseFastMutex( &RecMutex->Mutex );
-	} else {
-	    RecMutex->Locked = FALSE;
-	    RecMutex->Writer = FALSE;
-	    KeReleaseSpinLockFromDpcLevel( &RecMutex->SpinLock );
-	}
+        RecMutex->CurrentThread = NULL;
+        if( RecMutex->OldIrql <= APC_LEVEL ) {
+            ExAcquireFastMutex( &RecMutex->Mutex );
+            RecMutex->Locked = FALSE;
+            RecMutex->Writer = FALSE;
+            ExReleaseFastMutex( &RecMutex->Mutex );
+        } else {
+            RecMutex->Locked = FALSE;
+            RecMutex->Writer = FALSE;
+            KeReleaseSpinLockFromDpcLevel( &RecMutex->SpinLock );
+        }
 
-	KePulseEvent( &RecMutex->StateLockedEvent, IO_NETWORK_INCREMENT,
-		      FALSE );
+        KePulseEvent( &RecMutex->StateLockedEvent, IO_NETWORK_INCREMENT,
+            FALSE );
     }
 }