mirror of https://gitee.com/openkylin/linux.git
V4L/DVB (5696): M920x: add missing error handling to prevent syslog spamming
Signed-off-by: Aapo Tahkola <aet@rasterburn.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -407,6 +407,7 @@ static int m920x_identify_state(struct usb_device *udev,
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/* demod configurations */
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static int m920x_mt352_demod_init(struct dvb_frontend *fe)
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{
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int ret;
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u8 config[] = { CONFIG, 0x3d };
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u8 clock[] = { CLOCK_CTL, 0x30 };
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u8 reset[] = { RESET, 0x80 };
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@ -416,17 +417,25 @@ static int m920x_mt352_demod_init(struct dvb_frontend *fe)
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u8 unk1[] = { 0x93, 0x1a };
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u8 unk2[] = { 0xb5, 0x7a };
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mt352_write(fe, config, ARRAY_SIZE(config));
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mt352_write(fe, clock, ARRAY_SIZE(clock));
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mt352_write(fe, reset, ARRAY_SIZE(reset));
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mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
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mt352_write(fe, agc, ARRAY_SIZE(agc));
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mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
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mt352_write(fe, unk1, ARRAY_SIZE(unk1));
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mt352_write(fe, unk2, ARRAY_SIZE(unk2));
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deb("Demod init!\n");
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if ((ret = mt352_write(fe, config, ARRAY_SIZE(config))) != 0)
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return ret;
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if ((ret = mt352_write(fe, clock, ARRAY_SIZE(clock))) != 0)
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return ret;
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if ((ret = mt352_write(fe, reset, ARRAY_SIZE(reset))) != 0)
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return ret;
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if ((ret = mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl))) != 0)
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return ret;
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if ((ret = mt352_write(fe, agc, ARRAY_SIZE(agc))) != 0)
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return ret;
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if ((ret = mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc))) != 0)
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return ret;
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if ((ret = mt352_write(fe, unk1, ARRAY_SIZE(unk1))) != 0)
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return ret;
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if ((ret = mt352_write(fe, unk2, ARRAY_SIZE(unk2))) != 0)
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return ret;
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return 0;
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}
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