From: Lubomir Rintel <lkundrak@v3.sk> To: Mark Brown <broonie@kernel.org> Cc: Liam Girdwood <lgirdwood@gmail.com>, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Lubomir Rintel <lkundrak@v3.sk> Subject: [PATCH] ASoC: mmp-sspa: Fix the error handling in probe() Date: Wed, 20 May 2020 10:35:16 +0200 [thread overview] Message-ID: <20200520083516.2120802-1-lkundrak@v3.sk> (raw) If we fail after pm_runtime_enable(), we fail to undo it. Same with clk_prepare_enable(). Let's order them after all things that can fail. Fixes: 7d98cc648253 ("ASoC: mmp-sspa: Add support for the runtime power management") Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> --- sound/soc/pxa/mmp-sspa.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/sound/soc/pxa/mmp-sspa.c b/sound/soc/pxa/mmp-sspa.c index 60bf6fe05315..77a6d2998570 100644 --- a/sound/soc/pxa/mmp-sspa.c +++ b/sound/soc/pxa/mmp-sspa.c @@ -467,6 +467,7 @@ static const struct snd_soc_component_driver mmp_sspa_component = { static int asoc_mmp_sspa_probe(struct platform_device *pdev) { struct sspa_priv *sspa; + int ret; sspa = devm_kzalloc(&pdev->dev, sizeof(struct sspa_priv), GFP_KERNEL); @@ -518,8 +519,6 @@ static int asoc_mmp_sspa_probe(struct platform_device *pdev) return PTR_ERR(sspa->sysclk); } } - pm_runtime_enable(&pdev->dev); - clk_prepare_enable(sspa->audio_clk); platform_set_drvdata(pdev, sspa); sspa->playback_dma_data.maxburst = 4; @@ -529,16 +528,21 @@ static int asoc_mmp_sspa_probe(struct platform_device *pdev) sspa->playback_dma_data.addr = 0x80 + SSPA_D; if (pdev->dev.of_node) { - int ret; - ret = devm_snd_dmaengine_pcm_register(&pdev->dev, &mmp_pcm_config, 0); if (ret) return ret; } - return devm_snd_soc_register_component(&pdev->dev, &mmp_sspa_component, - &mmp_sspa_dai, 1); + ret = devm_snd_soc_register_component(&pdev->dev, &mmp_sspa_component, + &mmp_sspa_dai, 1); + if (ret) + return ret; + + pm_runtime_enable(&pdev->dev); + clk_prepare_enable(sspa->audio_clk); + + return 0; } static int asoc_mmp_sspa_remove(struct platform_device *pdev) -- 2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: Lubomir Rintel <lkundrak@v3.sk> To: Mark Brown <broonie@kernel.org> Cc: Lubomir Rintel <lkundrak@v3.sk>, alsa-devel@alsa-project.org, Liam Girdwood <lgirdwood@gmail.com>, linux-kernel@vger.kernel.org Subject: [PATCH] ASoC: mmp-sspa: Fix the error handling in probe() Date: Wed, 20 May 2020 10:35:16 +0200 [thread overview] Message-ID: <20200520083516.2120802-1-lkundrak@v3.sk> (raw) If we fail after pm_runtime_enable(), we fail to undo it. Same with clk_prepare_enable(). Let's order them after all things that can fail. Fixes: 7d98cc648253 ("ASoC: mmp-sspa: Add support for the runtime power management") Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> --- sound/soc/pxa/mmp-sspa.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/sound/soc/pxa/mmp-sspa.c b/sound/soc/pxa/mmp-sspa.c index 60bf6fe05315..77a6d2998570 100644 --- a/sound/soc/pxa/mmp-sspa.c +++ b/sound/soc/pxa/mmp-sspa.c @@ -467,6 +467,7 @@ static const struct snd_soc_component_driver mmp_sspa_component = { static int asoc_mmp_sspa_probe(struct platform_device *pdev) { struct sspa_priv *sspa; + int ret; sspa = devm_kzalloc(&pdev->dev, sizeof(struct sspa_priv), GFP_KERNEL); @@ -518,8 +519,6 @@ static int asoc_mmp_sspa_probe(struct platform_device *pdev) return PTR_ERR(sspa->sysclk); } } - pm_runtime_enable(&pdev->dev); - clk_prepare_enable(sspa->audio_clk); platform_set_drvdata(pdev, sspa); sspa->playback_dma_data.maxburst = 4; @@ -529,16 +528,21 @@ static int asoc_mmp_sspa_probe(struct platform_device *pdev) sspa->playback_dma_data.addr = 0x80 + SSPA_D; if (pdev->dev.of_node) { - int ret; - ret = devm_snd_dmaengine_pcm_register(&pdev->dev, &mmp_pcm_config, 0); if (ret) return ret; } - return devm_snd_soc_register_component(&pdev->dev, &mmp_sspa_component, - &mmp_sspa_dai, 1); + ret = devm_snd_soc_register_component(&pdev->dev, &mmp_sspa_component, + &mmp_sspa_dai, 1); + if (ret) + return ret; + + pm_runtime_enable(&pdev->dev); + clk_prepare_enable(sspa->audio_clk); + + return 0; } static int asoc_mmp_sspa_remove(struct platform_device *pdev) -- 2.26.2
next reply other threads:[~2020-05-20 8:35 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-20 8:35 Lubomir Rintel [this message] 2020-05-20 8:35 ` [PATCH] ASoC: mmp-sspa: Fix the error handling in probe() Lubomir Rintel 2020-05-20 17:17 ` Mark Brown 2020-05-20 17:17 ` Mark Brown
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