linux-kernel - [PATCH] ASoC: mediatek: Fix double pm_runtime

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>] [day] [month] [year] [list]

Message-ID: <20251020170440.585-1-vulab@iscas.ac.cn>
Date: Tue, 21 Oct 2025 01:04:40 +0800
From: Haotian Zhang <vulab@...as.ac.cn>
To: broonie@...nel.org
Cc: lgirdwood@...il.com,
	perex@...ex.cz,
	tiwai@...e.com,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Haotian Zhang <vulab@...as.ac.cn>
Subject: [PATCH] ASoC: mediatek: Fix double pm_runtime_disable in remove functions

Both mt8195-afe-pcm and mt8365-afe-pcm drivers use devm_pm_runtime_enable()
in probe function, which automatically calls pm_runtime_disable() on device
removal via devres mechanism. However, the remove callbacks explicitly call
pm_runtime_disable() again, resulting in double pm_runtime_disable() calls.

Fix by removing the redundant pm_runtime_disable() calls from remove
functions, letting the devres framework handle it automatically.

Fixes: 2ca0ec01d49c ("ASoC: mediatek: mt8195-afe-pcm: Simplify runtime PM during probe")
Fixes: e1991d102bc2 ("ASoC: mediatek: mt8365: Add the AFE driver support")
Signed-off-by: Haotian Zhang <vulab@...as.ac.cn>
---
 sound/soc/mediatek/mt8195/mt8195-afe-pcm.c | 1 -
 sound/soc/mediatek/mt8365/mt8365-afe-pcm.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
index 5d025ad72263..c63b3444bc17 100644
--- a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
+++ b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c
@@ -3176,7 +3176,6 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev)
 
 static void mt8195_afe_pcm_dev_remove(struct platform_device *pdev)
 {
-	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
 		mt8195_afe_runtime_suspend(&pdev->dev);
 }
diff --git a/sound/soc/mediatek/mt8365/mt8365-afe-pcm.c b/sound/soc/mediatek/mt8365/mt8365-afe-pcm.c
index 10793bbe9275..d48252cd96ac 100644
--- a/sound/soc/mediatek/mt8365/mt8365-afe-pcm.c
+++ b/sound/soc/mediatek/mt8365/mt8365-afe-pcm.c
@@ -2238,7 +2238,6 @@ static void mt8365_afe_pcm_dev_remove(struct platform_device *pdev)
 
 	mt8365_afe_disable_top_cg(afe, MT8365_TOP_CG_AFE);
 
-	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
 		mt8365_afe_runtime_suspend(&pdev->dev);
 }
-- 
2.25.1