diff --git a/reactos/ntoskrnl/fstub/fstubex.c b/reactos/ntoskrnl/fstub/fstubex.c
index 6564df9f949..e6f97e2aef7 100644
--- a/reactos/ntoskrnl/fstub/fstubex.c
+++ b/reactos/ntoskrnl/fstub/fstubex.c
@@ -1605,7 +1605,7 @@ FstubWritePartitionTableMBR(IN PDISK_INFORMATION Disk,
                                    DriveLayout);
 
     /* Free allocated structure and return */
-    ExFreePool(DriveLayout);
+    ExFreePoolWithTag(DriveLayout, 'BtsF');
     return Status;
 }
 
diff --git a/reactos/ntoskrnl/io/iomgr/driver.c b/reactos/ntoskrnl/io/iomgr/driver.c
index d2d28b83b2a..45c2d1697a3 100644
--- a/reactos/ntoskrnl/io/iomgr/driver.c
+++ b/reactos/ntoskrnl/io/iomgr/driver.c
@@ -1770,7 +1770,7 @@ IoAllocateDriverObjectExtension(IN PDRIVER_OBJECT DriverObject,
     if (!Inserted)
     {
         /* Free the entry and fail */
-        ExFreePool(NewDriverExtension);
+        ExFreePoolWithTag(NewDriverExtension, TAG_DRIVER_EXTENSION);
         return STATUS_OBJECT_NAME_COLLISION;
     }
 
diff --git a/reactos/ntoskrnl/io/iomgr/error.c b/reactos/ntoskrnl/io/iomgr/error.c
index 0fa5f56d648..07197ff39b4 100644
--- a/reactos/ntoskrnl/io/iomgr/error.c
+++ b/reactos/ntoskrnl/io/iomgr/error.c
@@ -486,8 +486,8 @@ IoAllocateErrorLogEntry(IN PVOID IoObject,
 {
     PERROR_LOG_ENTRY LogEntry;
     ULONG LogEntrySize;
-    PDRIVER_OBJECT DriverObject;
     PDEVICE_OBJECT DeviceObject;
+    PDRIVER_OBJECT DriverObject;
 
     /* Make sure we have an object */
     if (!IoObject) return NULL;
@@ -495,13 +495,6 @@ IoAllocateErrorLogEntry(IN PVOID IoObject,
     /* Check if we're past our buffer */
     if (IopTotalLogSize > PAGE_SIZE) return NULL;
 
-    /* Calculate the total size and allocate it */
-    LogEntrySize = sizeof(ERROR_LOG_ENTRY) + EntrySize;
-    LogEntry = ExAllocatePoolWithTag(NonPagedPool,
-                                     LogEntrySize,
-                                     TAG_ERROR_LOG);
-    if (!LogEntry) return NULL;
-
     /* Check if this is a device object or driver object */
     if (((PDEVICE_OBJECT)IoObject)->Type == IO_TYPE_DEVICE)
     {
@@ -511,9 +504,9 @@ IoAllocateErrorLogEntry(IN PVOID IoObject,
     }
     else if (((PDEVICE_OBJECT)IoObject)->Type == IO_TYPE_DRIVER)
     {
-        /* It's a driver, so we don' thave a device */
+        /* It's a driver, so we don't have a device */
         DeviceObject = NULL;
-        DriverObject = IoObject;
+        DriverObject = (PDRIVER_OBJECT)IoObject;
     }
     else
     {
@@ -521,6 +514,13 @@ IoAllocateErrorLogEntry(IN PVOID IoObject,
         return NULL;
     }
 
+    /* Calculate the total size and allocate it */
+    LogEntrySize = sizeof(ERROR_LOG_ENTRY) + EntrySize;
+    LogEntry = ExAllocatePoolWithTag(NonPagedPool,
+                                     LogEntrySize,
+                                     TAG_ERROR_LOG);
+    if (!LogEntry) return NULL;
+
     /* Reference the Objects */
     if (DeviceObject) ObReferenceObject(DeviceObject);
     if (DriverObject) ObReferenceObject(DriverObject);