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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-04 23:35:07 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-05 13:09:27 +0300 |
| commit | 060f79d5758668c913a6d992feaa6b30f97f5d32 (patch) | |
| tree | fba265a9a6f41e6fb1f3b1a415f5d5140d5bf631 /drivers/media | |
| parent | a8f29e89f2b54fbf2c52be341f149bc195b63a8b (diff) | |
| download | linux-060f79d5758668c913a6d992feaa6b30f97f5d32.tar.xz | |
[media] af0933: Don't go past arrays
X-Patchwork-Delegate: m.chehab@samsung.com
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 <mchehab@osg.samsung.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb-frontends/af9033.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/media/dvb-frontends/af9033.c b/drivers/media/dvb-frontends/af9033.c index c17e34fd0fb4..82ce47bdf5dc 100644 --- a/drivers/media/dvb-frontends/af9033.c +++ b/drivers/media/dvb-frontends/af9033.c @@ -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 */ |