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[media] af9033: improve read_signal_strength error handling slightly 

Check return status after each register access routine and avoid
masking return status values.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Antti Palosaari 2014-11-03 21:23:26 -03:00 committed by Mauro Carvalho Chehab
parent 0b0d96281f
commit 1620d22184
1 changed files with 6 additions and 4 deletions
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10
drivers/media/dvb-frontends/af9033.c
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@ -876,7 +876,12 @@ static int af9033_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
*strength = u8tmp * 0xffff / 100;
} else {
ret = af9033_rd_reg(dev, 0x8000f7, &u8tmp);
ret |= af9033_rd_regs(dev, 0x80f900, buf, 7);
if (ret < 0)
goto err;
ret = af9033_rd_regs(dev, 0x80f900, buf, 7);
if (ret < 0)
goto err;
if (c->frequency <= 300000000)
gain_offset = 7; /* VHF */
@ -901,9 +906,6 @@ static int af9033_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
*strength = tmp * 0xffff / 100;
}
if (ret)
goto err;
return 0;
err: