Prevent setting volume to outrageous values.

modules/misc/lua/libs/volume.c

@@ -53,8 +53,8 @@
 static int vlclua_volume_set( lua_State *L )
 {
     playlist_t *p_this = vlclua_get_playlist_internal( L );
-    int i_volume = luaL_checkint( L, 1 );
-    /* Do we need to check that i_volume is in the AOUT_VOLUME_MIN->MAX range?*/
+    int i_volume = __MAX(__MIN(luaL_checkint( L, 1 ), AOUT_VOLUME_MAX),
+                         AOUT_VOLUME_MIN);
     int i_ret = aout_VolumeSet( p_this, i_volume );
     vlclua_release_playlist_internal( p_this );
     return vlclua_push_ret( L, i_ret );