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[media] si2168: return error if set_frontend is called with invalid parameters

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This patch should is based on Antti's silabs branch.

According to dvb-frontend.h set_frontend may be called with bandwidth_hz set to 0 if automatic bandwidth is required. Si2168 does not support automatic bandwidth and does not declare FE_CAN_BANDWIDTH_AUTO in caps.

This patch will change the behaviour in a way that EINVAL is returned if bandwidth_hz is 0.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Olli Salonen 2015-01-16 09:35:19 -03:00 committed by Mauro Carvalho Chehab
parent 3656cddd50
commit 683e98b602
1 changed files with 4 additions and 1 deletions
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5
drivers/media/dvb-frontends/si2168.c
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@ -180,7 +180,10 @@ static int si2168_set_frontend(struct dvb_frontend *fe)
goto err;
}
if (c->bandwidth_hz <= 5000000)
if (c->bandwidth_hz == 0) {
ret = -EINVAL;
goto err;
} else if (c->bandwidth_hz <= 5000000)
bandwidth = 0x05;
else if (c->bandwidth_hz <= 6000000)
bandwidth = 0x06;