vlc_module_(start|stop): constify

include/vlc_modules.h

@@ -45,9 +45,9 @@ VLC_API void module_unneed( vlc_object_t *, module_t * );
 VLC_API bool module_exists(const char *) VLC_USED;
 VLC_API module_t * module_find(const char *) VLC_USED;
 
-int module_start(vlc_object_t *, module_t *);
+int module_start(vlc_object_t *, const module_t *);
 #define module_start(o, m) module_start(VLC_OBJECT(o),m)
-void module_stop(vlc_object_t *, module_t *);
+void module_stop(vlc_object_t *, const module_t *);
 #define module_stop(o, m) module_stop(VLC_OBJECT(o),m)
 
 VLC_API module_config_t * module_config_get( const module_t *, unsigned * ) VLC_USED;

src/modules/modules.c

@@ -292,7 +292,7 @@ void module_release (module_t *m)
 }
 
 #undef module_start
-int module_start (vlc_object_t *obj, module_t *m)
+int module_start (vlc_object_t *obj, const module_t *m)
 {
    int (*activate) (vlc_object_t *) = m->pf_activate;
 
@@ -300,7 +300,7 @@ int module_start (vlc_object_t *obj, module_t *m)
 }
 
 #undef module_stop
-void module_stop (vlc_object_t *obj, module_t *m)
+void module_stop (vlc_object_t *obj, const module_t *m)
 {
    void (*deactivate) (vlc_object_t *) = m->pf_deactivate;