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ASoC: tas2770: Fix error handling with update_bits

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snd_soc_update_bits returns a 1 when the bit was successfully updated,
returns a 0 is no update was needed and a negative if the call failed.
The code is currently failing the case of a successful update by just
checking for a non-zero number. Modify these checks and return the error
code only if there is a negative.

Fixes: 1a476abc72 ("tas2770: add tas2770 smart PA kernel driver")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200918190548.12598-7-dmurphy@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dan Murphy 2020-09-18 14:05:46 -05:00 committed by Mark Brown
parent 4b8ab8a776
commit cadab0aefc
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 24 additions and 28 deletions
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52
sound/soc/codecs/tas2770.c
View File

@ -140,23 +140,18 @@ static int tas2770_dac_event(struct snd_soc_dapm_widget *w,
TAS2770_PWR_CTRL,
TAS2770_PWR_CTRL_MASK,
TAS2770_PWR_CTRL_MUTE);
if (ret)
goto end;
break;
case SND_SOC_DAPM_PRE_PMD:
ret = snd_soc_component_update_bits(component,
TAS2770_PWR_CTRL,
TAS2770_PWR_CTRL_MASK,
TAS2770_PWR_CTRL_SHUTDOWN);
if (ret)
goto end;
break;
default:
dev_err(tas2770->dev, "Not supported evevt\n");
return -EINVAL;
}
end:
if (ret < 0)
return ret;
@ -248,6 +243,9 @@ static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth)
return -EINVAL;
}
if (ret < 0)
return ret;
tas2770->channel_size = bitwidth;
ret = snd_soc_component_update_bits(component,
@ -256,16 +254,15 @@ static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth)
TAS2770_TDM_CFG_REG5_50_MASK,
TAS2770_TDM_CFG_REG5_VSNS_ENABLE |
tas2770->v_sense_slot);
if (ret)
goto end;
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG6,
TAS2770_TDM_CFG_REG6_ISNS_MASK |
TAS2770_TDM_CFG_REG6_50_MASK,
TAS2770_TDM_CFG_REG6_ISNS_ENABLE |
tas2770->i_sense_slot);
end:
if (ret < 0)
return ret;
@ -283,36 +280,35 @@ static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_48KHZ);
if (ret)
goto end;
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
if (ret)
goto end;
break;
case 44100:
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
if (ret)
goto end;
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
if (ret)
goto end;
break;
case 96000:
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_48KHZ);
if (ret)
goto end;
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
@ -323,8 +319,9 @@ static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
if (ret)
goto end;
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
@ -335,22 +332,22 @@ static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_48KHZ);
if (ret)
goto end;
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
TAS2770_TDM_CFG_REG0_31_176_4_192KHZ);
if (ret)
goto end;
break;
case 17640:
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_SMP_MASK,
TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
if (ret)
goto end;
if (ret < 0)
return ret;
ret = snd_soc_component_update_bits(component,
TAS2770_TDM_CFG_REG0,
TAS2770_TDM_CFG_REG0_31_MASK,
@ -360,7 +357,6 @@ static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
ret = -EINVAL;
}
end:
if (ret < 0)
return ret;