linux-kernel - [PATCH 3/3] ASoC: qcom: use int type to store negative error codes

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Message-Id: <20250828075406.386208-4-rongqianfeng@vivo.com>
Date: Thu, 28 Aug 2025 15:53:59 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Srinivas Kandagatla <srini@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-sound@...r.kernel.org (open list:QCOM AUDIO (ASoC) DRIVERS),
	linux-arm-msm@...r.kernel.org (open list:QCOM AUDIO (ASoC) DRIVERS),
	linux-kernel@...r.kernel.org (open list)
Cc: Qianfeng Rong <rongqianfeng@...o.com>
Subject: [PATCH 3/3] ASoC: qcom: use int type to store negative error codes

Change the 'ret' variable from unsigned int to int to store negative error
codes or zero returned by regmap_field_write().

Storing the negative error codes in unsigned type, doesn't cause an issue
at runtime but it's ugly as pants. Additionally, assigning negative error
codes to unsigned type may trigger a GCC warning when the -Wsign-conversion
flag is enabled.

No effect on runtime.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 sound/soc/qcom/lpass-cdc-dma.c | 3 ++-
 sound/soc/qcom/lpass-hdmi.c    | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/lpass-cdc-dma.c b/sound/soc/qcom/lpass-cdc-dma.c
index 8106c586f68a..2dc8c75c4bf0 100644
--- a/sound/soc/qcom/lpass-cdc-dma.c
+++ b/sound/soc/qcom/lpass-cdc-dma.c
@@ -217,8 +217,9 @@ static int lpass_cdc_dma_daiops_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *soc_runtime = snd_soc_substream_to_rtd(substream);
 	struct lpaif_dmactl *dmactl = NULL;
-	unsigned int ret, regval;
+	unsigned int regval;
 	unsigned int channels = params_channels(params);
+	int ret;
 	int id;
 
 	switch (channels) {
diff --git a/sound/soc/qcom/lpass-hdmi.c b/sound/soc/qcom/lpass-hdmi.c
index ce753ebc0894..6d9795306cfa 100644
--- a/sound/soc/qcom/lpass-hdmi.c
+++ b/sound/soc/qcom/lpass-hdmi.c
@@ -23,7 +23,6 @@ static int lpass_hdmi_daiops_hw_params(struct snd_pcm_substream *substream,
 	snd_pcm_format_t format = params_format(params);
 	unsigned int rate = params_rate(params);
 	unsigned int channels = params_channels(params);
-	unsigned int ret;
 	int bitwidth;
 	unsigned int word_length;
 	unsigned int ch_sts_buf0;
@@ -33,6 +32,7 @@ static int lpass_hdmi_daiops_hw_params(struct snd_pcm_substream *substream,
 	unsigned int ch = 0;
 	struct lpass_dp_metadata_ctl *meta_ctl = drvdata->meta_ctl;
 	struct lpass_sstream_ctl *sstream_ctl = drvdata->sstream_ctl;
+	int ret;
 
 	bitwidth = snd_pcm_format_width(format);
 	if (bitwidth < 0) {
-- 
2.34.1