linux-kernel - [PATCH 4.19 033/142] ASoC: sun8i-codec: fix crash on module removal

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Message-Id: <20181214115748.375536656@linuxfoundation.org>
Date:   Fri, 14 Dec 2018 12:58:38 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vasily Khoruzhick <anarsoul@...il.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 033/142] ASoC: sun8i-codec: fix crash on module removal

4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 278df5e5527b633f4882f1680ad58b62a7c07bfe ]

drvdata is actually sun8i_codec, not snd_soc_card, so it crashes
when calling snd_soc_card_get_drvdata().

Drop card and scodec vars anyway since we don't need to
disable/unprepare clocks - it's already done by calling
runtime_suspend()

Drop clk_disable_unprepare() calls for the same reason.

Fixes: 36c684936fae7 ("ASoC: Add sun8i digital audio codec")
Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com>
Acked-by: Maxime Ripard <maxime.ripard@...tlin.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/sunxi/sun8i-codec.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c
index fb37dd927e33..bf615fa16dc8 100644
--- a/sound/soc/sunxi/sun8i-codec.c
+++ b/sound/soc/sunxi/sun8i-codec.c
@@ -589,16 +589,10 @@ static int sun8i_codec_probe(struct platform_device *pdev)
 
 static int sun8i_codec_remove(struct platform_device *pdev)
 {
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-	struct sun8i_codec *scodec = snd_soc_card_get_drvdata(card);
-
 	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
 		sun8i_codec_runtime_suspend(&pdev->dev);
 
-	clk_disable_unprepare(scodec->clk_module);
-	clk_disable_unprepare(scodec->clk_bus);
-
 	return 0;
 }
 
-- 
2.19.1