diff options
Diffstat (limited to 'drivers/media/usb/dvb-usb/digitv.c')
| -rw-r--r-- | drivers/media/usb/dvb-usb/digitv.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/media/usb/dvb-usb/digitv.c b/drivers/media/usb/dvb-usb/digitv.c index 63134335c994..4284f6984dc1 100644 --- a/drivers/media/usb/dvb-usb/digitv.c +++ b/drivers/media/usb/dvb-usb/digitv.c @@ -28,22 +28,26 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); static int digitv_ctrl_msg(struct dvb_usb_device *d, u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen) { - int wo = (rbuf == NULL || rlen == 0); /* write-only */ - u8 sndbuf[7],rcvbuf[7]; - memset(sndbuf,0,7); memset(rcvbuf,0,7); + struct digitv_state *st = d->priv; + int ret, wo; - sndbuf[0] = cmd; - sndbuf[1] = vv; - sndbuf[2] = wo ? wlen : rlen; + wo = (rbuf == NULL || rlen == 0); /* write-only */ + + memset(st->sndbuf, 0, 7); + memset(st->rcvbuf, 0, 7); + + st->sndbuf[0] = cmd; + st->sndbuf[1] = vv; + st->sndbuf[2] = wo ? wlen : rlen; if (wo) { - memcpy(&sndbuf[3],wbuf,wlen); - dvb_usb_generic_write(d,sndbuf,7); + memcpy(&st->sndbuf[3], wbuf, wlen); + ret = dvb_usb_generic_write(d, st->sndbuf, 7); } else { - dvb_usb_generic_rw(d,sndbuf,7,rcvbuf,7,10); - memcpy(rbuf,&rcvbuf[3],rlen); + ret = dvb_usb_generic_rw(d, st->sndbuf, 7, st->rcvbuf, 7, 10); + memcpy(rbuf, &st->rcvbuf[3], rlen); } - return 0; + return ret; } /* I2C */ |