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[media] af0933: Don't go past arrays

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X-Patchwork-Delegate: [email protected]
Fixes the following sparse warnings:
	drivers/media/dvb-frontends/af9033.c:295 af9033_init() error: buffer overflow 'clock_adc_lut' 11 <= 11
	drivers/media/dvb-frontends/af9033.c:300 af9033_init() error: buffer overflow 'clock_adc_lut' 11 <= 11
	drivers/media/dvb-frontends/af9033.c:584 af9033_set_frontend() error: buffer overflow 'coeff_lut' 3 <= 3
	drivers/media/dvb-frontends/af9033.c:595 af9033_set_frontend() error: buffer overflow 'clock_adc_lut' 11 <= 11

Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Reviewed-by: Antti Palosaari <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Mauro Carvalho Chehab 2014-11-04 17:35:07 -03:00
commit 060f79d575
1 changed files with 22 additions and 1 deletions
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23
drivers/media/dvb-frontends/af9033.c
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@ -291,6 +291,12 @@ static int af9033_init(struct dvb_frontend *fe)
if (clock_adc_lut[i].clock == dev->cfg.clock)
break;
}
if (i == ARRAY_SIZE(clock_adc_lut)) {
dev_err(&dev->client->dev,
"Couldn't find ADC config for clock=%d\n",
dev->cfg.clock);
goto err;
}
adc_cw = af9033_div(dev, clock_adc_lut[i].adc, 1000000ul, 19ul);
buf[0] = (adc_cw >> 0) & 0xff;
@ -580,7 +586,15 @@ static int af9033_set_frontend(struct dvb_frontend *fe)
break;
}
}
ret = af9033_wr_regs(dev, 0x800001,
if (i == ARRAY_SIZE(coeff_lut)) {
dev_err(&dev->client->dev,
"Couldn't find LUT config for clock=%d\n",
dev->cfg.clock);
ret = -EINVAL;
goto err;
}
ret = af9033_wr_regs(dev, 0x800001,
coeff_lut[i].val, sizeof(coeff_lut[i].val));
}
@ -592,6 +606,13 @@ static int af9033_set_frontend(struct dvb_frontend *fe)
if (clock_adc_lut[i].clock == dev->cfg.clock)
break;
}
if (i == ARRAY_SIZE(clock_adc_lut)) {
dev_err(&dev->client->dev,
"Couldn't find ADC clock for clock=%d\n",
dev->cfg.clock);
ret = -EINVAL;
goto err;
}
adc_freq = clock_adc_lut[i].adc;
/* get used IF frequency */