linux-kernel - [PATCH v1 1/3] ALSA: hda/cs35l41: Fix error condition check

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Date:   Thu, 9 Feb 2023 16:04:01 +0000
From:   Stefan Binding <sbinding@...nsource.cirrus.com>
To:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
CC:     <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
Subject: [PATCH v1 1/3] ALSA: hda/cs35l41: Fix error condition check

From: Vitaly Rodionov <vitalyr@...nsource.cirrus.com>

Function hda_cs_dsp_write_ctl() returns 3 possible values:
0 - no change, 1 - value has changed and -1 - error, so value 1
is not an error.

Signed-off-by: Vitaly Rodionov <vitalyr@...nsource.cirrus.com>
---
 sound/pci/hda/cs35l41_hda.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index f7815ee24f83..4dc57454201e 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -316,27 +316,27 @@ static int cs35l41_apply_calibration(struct cs35l41_hda *cs35l41, unsigned int a
 
 	ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_AMBIENT_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
 				   CAL_DSP_CTL_ALG, &ambient, 4);
-	if (ret) {
+	if (ret < 0) {
 		dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_AMBIENT_DSP_CTL_NAME,
 			ret);
 		return ret;
 	}
 	ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_R_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
 				   CAL_DSP_CTL_ALG, &r0, 4);
-	if (ret) {
+	if (ret < 0) {
 		dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_R_DSP_CTL_NAME, ret);
 		return ret;
 	}
 	ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_STATUS_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
 				   CAL_DSP_CTL_ALG, &status, 4);
-	if (ret) {
+	if (ret < 0) {
 		dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_STATUS_DSP_CTL_NAME,
 			ret);
 		return ret;
 	}
 	ret = hda_cs_dsp_write_ctl(&cs35l41->cs_dsp, CAL_CHECKSUM_DSP_CTL_NAME, CAL_DSP_CTL_TYPE,
 				   CAL_DSP_CTL_ALG, &checksum, 4);
-	if (ret) {
+	if (ret < 0) {
 		dev_err(cs35l41->dev, "Cannot Write Control: %s - %d\n", CAL_CHECKSUM_DSP_CTL_NAME,
 			ret);
 		return ret;
-- 
2.34.1