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[media] dib0090: do the right thing if rf_ramp is NULL 

As warned by smatch:
	drivers/media/dvb-frontends/dib0090.c:1118 dib0090_pwm_gain_reset() error: we previously assumed 'state->rf_ramp' could be null (see line 1086)

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2016-02-22 11:12:41 -03:00
parent 55d066a4c7
commit e76bea9abd
1 changed files with 8 additions and 2 deletions
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10
drivers/media/dvb-frontends/dib0090.c
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@ -1115,9 +1115,15 @@ void dib0090_pwm_gain_reset(struct dvb_frontend *fe)
dib0090_set_bbramp_pwm(state, bb_ramp);
/* activate the ramp generator using PWM control */
dprintk("ramp RF gain = %d BAND = %s version = %d", state->rf_ramp[0], (state->current_band == BAND_CBAND) ? "CBAND" : "NOT CBAND", state->identity.version & 0x1f);
if (rf_ramp)
dprintk("ramp RF gain = %d BAND = %s version = %d",
state->rf_ramp[0],
(state->current_band == BAND_CBAND) ? "CBAND" : "NOT CBAND",
state->identity.version & 0x1f);
if ((state->rf_ramp[0] == 0) || (state->current_band == BAND_CBAND && (state->identity.version & 0x1f) <= P1D_E_F)) {
if (rf_ramp && ((state->rf_ramp[0] == 0) ||
(state->current_band == BAND_CBAND &&
(state->identity.version & 0x1f) <= P1D_E_F))) {
dprintk("DE-Engage mux for direct gain reg control");
en_pwm_rf_mux = 0;
} else