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Fri, 18 Sep 2020 14:06:16 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 08IJ6GTD013631; Fri, 18 Sep 2020 14:06:16 -0500 From: Dan Murphy To: , , , Subject: [PATCH 7/9] ASoC: tas2770: Fix error handling with update_bits Date: Fri, 18 Sep 2020 14:05:46 -0500 Message-ID: <20200918190548.12598-7-dmurphy@ti.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200918190548.12598-1-dmurphy@ti.com> References: <20200918190548.12598-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Dan Murphy X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" 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: 1a476abc723e6 ("tas2770: add tas2770 smart PA kernel driver") Signed-off-by: Dan Murphy --- sound/soc/codecs/tas2770.c | 52 ++++++++++++++++++-------------------- 1 file changed, 24 insertions(+), 28 deletions(-) diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c index 16979583cd68..3226c6d4493e 100644 --- a/sound/soc/codecs/tas2770.c +++ b/sound/soc/codecs/tas2770.c @@ -139,23 +139,18 @@ 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; @@ -247,6 +242,9 @@ 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, @@ -255,16 +253,15 @@ 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; @@ -282,36 +279,35 @@ 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, @@ -322,8 +318,9 @@ 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, @@ -334,22 +331,22 @@ 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, @@ -359,7 +356,6 @@ static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate) ret = -EINVAL; } -end: if (ret < 0) return ret;