linux-kernel - [PATCH 2/5] ASoC: wm_adsp: Use cs_dsp_coeff_lock_and_[read|write]

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Mon, 25 Mar 2024 11:31:24 +0000
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: <broonie@...nel.org>, <tiwai@...e.com>
CC: <linux-sound@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>,
        "Simon
 Trimmer" <simont@...nsource.cirrus.com>,
        Richard Fitzgerald
	<rf@...nsource.cirrus.com>
Subject: [PATCH 2/5] ASoC: wm_adsp: Use cs_dsp_coeff_lock_and_[read|write]_ctrl()

From: Simon Trimmer <simont@...nsource.cirrus.com>

Using the cs_dsp_coeff_lock_and_[read|write]_ctrl() wrappers tidies
the calling functions as it does not need to manage the DSP pwr_lock.

Signed-off-by: Simon Trimmer <simont@...nsource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
 sound/soc/codecs/wm_adsp.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 7d5c096e06cd..8e366902ee4e 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -403,13 +403,8 @@ static int wm_coeff_put(struct snd_kcontrol *kctl,
 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 	struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 	char *p = ucontrol->value.bytes.data;
-	int ret = 0;
-
-	mutex_lock(&cs_ctl->dsp->pwr_lock);
-	ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, p, cs_ctl->len);
-	mutex_unlock(&cs_ctl->dsp->pwr_lock);
 
-	return ret;
+	return cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, p, cs_ctl->len);
 }
 
 static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
@@ -426,13 +421,11 @@ static int wm_coeff_tlv_put(struct snd_kcontrol *kctl,
 	if (!scratch)
 		return -ENOMEM;
 
-	if (copy_from_user(scratch, bytes, size)) {
+	if (copy_from_user(scratch, bytes, size))
 		ret = -EFAULT;
-	} else {
-		mutex_lock(&cs_ctl->dsp->pwr_lock);
-		ret = cs_dsp_coeff_write_ctrl(cs_ctl, 0, scratch, size);
-		mutex_unlock(&cs_ctl->dsp->pwr_lock);
-	}
+	else
+		ret = cs_dsp_coeff_lock_and_write_ctrl(cs_ctl, 0, scratch, size);
+
 	vfree(scratch);
 
 	return ret;
@@ -474,13 +467,8 @@ static int wm_coeff_get(struct snd_kcontrol *kctl,
 	struct wm_coeff_ctl *ctl = bytes_ext_to_ctl(bytes_ext);
 	struct cs_dsp_coeff_ctl *cs_ctl = ctl->cs_ctl;
 	char *p = ucontrol->value.bytes.data;
-	int ret;
 
-	mutex_lock(&cs_ctl->dsp->pwr_lock);
-	ret = cs_dsp_coeff_read_ctrl(cs_ctl, 0, p, cs_ctl->len);
-	mutex_unlock(&cs_ctl->dsp->pwr_lock);
-
-	return ret;
+	return cs_dsp_coeff_lock_and_read_ctrl(cs_ctl, 0, p, cs_ctl->len);
 }
 
 static int wm_coeff_tlv_get(struct snd_kcontrol *kctl,
-- 
2.39.2