drivers/acpi/dispatcher/dsmethod.c:568:50: warning: Using plain integer as NULL pointer
drivers/acpi/executer/exmutex.c:329:30: warning: Using plain integer as NULL pointer
drivers/acpi/executer/exmutex.c:466:31: warning: Using plain integer as NULL pointer
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 
                                acpi_os_release_mutex(method_desc->method.
                                                      mutex->mutex.os_mutex);
-                               method_desc->method.mutex->mutex.thread_id = 0;
+                               method_desc->method.mutex->mutex.thread_id = NULL;
                        }
                }
 
 
 
        /* Clear mutex info */
 
-       obj_desc->mutex.thread_id = 0;
+       obj_desc->mutex.thread_id = NULL;
        return_ACPI_STATUS(status);
 }
 
                /* Mark mutex unowned */
 
                obj_desc->mutex.owner_thread = NULL;
-               obj_desc->mutex.thread_id = 0;
+               obj_desc->mutex.thread_id = NULL;
 
                /* Update Thread sync_level (Last mutex is the important one) */