*** Warning: "errno" [drivers/media/dvb/frontends/tda1004x.ko] undefined!
drivers/media/dvb/frontends/alps_tdlb7.c:162: warning: implicit declaration of function `sys_close'
drivers/media/dvb/frontends/sp887x.c:224: warning: implicit declaration of function `sys_close'
drivers/media/dvb/frontends/tda1004x.c:409: warning: implicit declaration of function `sys_close'
drivers/media/dvb/ttpci/budget-ci.c:406: warning: `ciintf_init' defined but not used