diff --git a/reactos/drivers/storage/scsiport/scsiport.c b/reactos/drivers/storage/scsiport/scsiport.c
index 69371475e74..e7296e36c06 100644
--- a/reactos/drivers/storage/scsiport/scsiport.c
+++ b/reactos/drivers/storage/scsiport/scsiport.c
@@ -2894,8 +2894,12 @@ ScsiPortStartIo(IN PDEVICE_OBJECT DeviceObject,
 
         IoCompleteRequest(Irp, IO_NO_INCREMENT);
     }
+    else
+    {
+        /* Release the spinlock only */
+        KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
+    }
 
-    KeReleaseSpinLockFromDpcLevel(&DeviceExtension->SpinLock);
 
     DPRINT("ScsiPortStartIo() done\n");
 }