drivers/char/ds1620.c:230:19: warning: incorrect type in argument 1 (different address spaces)
drivers/char/ds1620.c:230:19:    expected void [noderef] *to<asn:1>
drivers/char/ds1620.c:230:19:    got char *buf
drivers/char/ds1620.c:230:19: warning: incorrect type in initializer (different address spaces)
drivers/char/ds1620.c:230:19:    expected void [noderef] *to<asn:1>
drivers/char/ds1620.c:230:19:    got char *buf
...
drivers/char/ds1620.c:383:52: warning: Using plain integer as NULL pointer