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[media] ds3000: fix reading array out of bound in ds3000_read_snr 

An attempt was made to read dvbs2_snr_tab[80],
though dvbs2_snr_tab has only 80 elements.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Heinrich Schuchardt 2014-02-27 23:04:08 -03:00 committed by Mauro Carvalho Chehab
parent 7e6bd12fb7
commit b59de95bed
1 changed files with 1 additions and 1 deletions
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2
drivers/media/dvb-frontends/ds3000.c
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@ -616,7 +616,7 @@ static int ds3000_read_snr(struct dvb_frontend *fe, u16 *snr)
snr_reading = dvbs2_noise_reading / tmp;
if (snr_reading > 80)
snr_reading = 80;
*snr = -(dvbs2_snr_tab[snr_reading] / 1000);
*snr = -(dvbs2_snr_tab[snr_reading - 1] / 1000);
}
dprintk("%s: raw / cooked = 0x%02x / 0x%04x\n", __func__,
snr_reading, *snr);