From d36e418a7b1eaeb006ee304533054e2720537db7 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 22 Jan 2013 08:49:39 -0200 Subject: [media] mb86a20s: Split status read logic from DVB callback Split the logic that reads the status from the DVB callback. That helps to properly return an error code, if status read fails. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/mb86a20s.c | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) diff --git a/drivers/media/dvb-frontends/mb86a20s.c b/drivers/media/dvb-frontends/mb86a20s.c index 8f4fff1f0fa5..03b74d3afd8f 100644 --- a/drivers/media/dvb-frontends/mb86a20s.c +++ b/drivers/media/dvb-frontends/mb86a20s.c @@ -320,16 +320,14 @@ static int mb86a20s_read_signal_strength(struct dvb_frontend *fe, u16 *strength) static int mb86a20s_read_status(struct dvb_frontend *fe, fe_status_t *status) { struct mb86a20s_state *state = fe->demodulator_priv; - u8 val; + int val; dprintk("\n"); *status = 0; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); val = mb86a20s_readreg(state, 0x0a) & 0xf; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); + if (val < 0) + return val; if (val >= 2) *status |= FE_HAS_SIGNAL; @@ -635,6 +633,25 @@ error: } +static int mb86a20s_read_status_gate(struct dvb_frontend *fe, + fe_status_t *status) +{ + int ret; + + dprintk("\n"); + *status = 0; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + + ret = mb86a20s_read_status(fe, status); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + return ret; +} + static int mb86a20s_tune(struct dvb_frontend *fe, bool re_tune, unsigned int mode_flags, @@ -649,7 +666,7 @@ static int mb86a20s_tune(struct dvb_frontend *fe, rc = mb86a20s_set_frontend(fe); if (!(mode_flags & FE_TUNE_MODE_ONESHOT)) - mb86a20s_read_status(fe, status); + mb86a20s_read_status_gate(fe, status); return rc; } @@ -730,7 +747,7 @@ static struct dvb_frontend_ops mb86a20s_ops = { .init = mb86a20s_initfe, .set_frontend = mb86a20s_set_frontend, .get_frontend = mb86a20s_get_frontend, - .read_status = mb86a20s_read_status, + .read_status = mb86a20s_read_status_gate, .read_signal_strength = mb86a20s_read_signal_strength, .tune = mb86a20s_tune, }; -- cgit v1.2.3