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[media] stv090x: remove indent levels in stv090x_get_coldlock()

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This code is needlessly complicated and checkpatch.pl complains that we
go over the 80 characters per line limit.

If we flip the "if (!lock) {" test to "if (lock) return;" then we can
remove an indent level from the rest of the function.

We can add two returns in the "if (state->srate >= 10000000) {"
condition and move the else statement back an additional indent level.

There is another "if (!lock) {" check which can be removed since we have
already checked "lock" and know it is zero at this point.  This second
check on "lock" is also a problem because it sets off a static checker
warning.  I have reviewed this code for some time to see if something
else was intended, but have concluded that it was simply an oversight
and should be removed.  Removing this duplicative check gains us an
third indent level.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Dan Carpenter 2014-02-21 05:50:01 -03:00 committed by Mauro Carvalho Chehab
parent 9fd1f310a1
commit 66ae9fc237
1 changed files with 89 additions and 91 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

180
drivers/media/dvb-frontends/stv090x.c
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@ -2146,7 +2146,7 @@ static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
u32 reg;
s32 car_step, steps, cur_step, dir, freq, timeout_lock;
int lock = 0;
int lock;
if (state->srate >= 10000000)
timeout_lock = timeout_dmd / 3;
@ -2154,98 +2154,96 @@ static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
timeout_lock = timeout_dmd / 2;
lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
if (!lock) {
if (state->srate >= 10000000) {
if (stv090x_chk_tmg(state)) {
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
goto err;
lock = stv090x_get_dmdlock(state, timeout_dmd);
} else {
lock = 0;
}
} else {
if (state->srate <= 4000000)
car_step = 1000;
else if (state->srate <= 7000000)
car_step = 2000;
else if (state->srate <= 10000000)
car_step = 3000;
else
car_step = 5000;
if (lock)
return lock;
steps = (state->search_range / 1000) / car_step;
steps /= 2;
steps = 2 * (steps + 1);
if (steps < 0)
steps = 2;
else if (steps > 12)
steps = 12;
cur_step = 1;
dir = 1;
if (!lock) {
freq = state->frequency;
state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
while ((cur_step <= steps) && (!lock)) {
if (dir > 0)
freq += cur_step * car_step;
else
freq -= cur_step * car_step;
/* Setup tuner */
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_set_frequency) {
if (state->config->tuner_set_frequency(fe, freq) < 0)
goto err_gateoff;
}
if (state->config->tuner_set_bandwidth) {
if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
goto err_gateoff;
}
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
msleep(50);
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_get_status) {
if (state->config->tuner_get_status(fe, &reg) < 0)
goto err_gateoff;
}
if (reg)
dprintk(FE_DEBUG, 1, "Tuner phase locked");
else
dprintk(FE_DEBUG, 1, "Tuner unlocked");
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
goto err;
lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
dir *= -1;
cur_step++;
}
}
if (state->srate >= 10000000) {
if (stv090x_chk_tmg(state)) {
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
goto err;
return stv090x_get_dmdlock(state, timeout_dmd);
}
return 0;
}
if (state->srate <= 4000000)
car_step = 1000;
else if (state->srate <= 7000000)
car_step = 2000;
else if (state->srate <= 10000000)
car_step = 3000;
else
car_step = 5000;
steps = (state->search_range / 1000) / car_step;
steps /= 2;
steps = 2 * (steps + 1);
if (steps < 0)
steps = 2;
else if (steps > 12)
steps = 12;
cur_step = 1;
dir = 1;
freq = state->frequency;
state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
while ((cur_step <= steps) && (!lock)) {
if (dir > 0)
freq += cur_step * car_step;
else
freq -= cur_step * car_step;
/* Setup tuner */
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_set_frequency) {
if (state->config->tuner_set_frequency(fe, freq) < 0)
goto err_gateoff;
}
if (state->config->tuner_set_bandwidth) {
if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
goto err_gateoff;
}
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
msleep(50);
if (stv090x_i2c_gate_ctrl(state, 1) < 0)
goto err;
if (state->config->tuner_get_status) {
if (state->config->tuner_get_status(fe, &reg) < 0)
goto err_gateoff;
}
if (reg)
dprintk(FE_DEBUG, 1, "Tuner phase locked");
else
dprintk(FE_DEBUG, 1, "Tuner unlocked");
if (stv090x_i2c_gate_ctrl(state, 0) < 0)
goto err;
STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
goto err;
if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
goto err;
lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
dir *= -1;
cur_step++;
}
return lock;