linux-kernel - [PATCH v2] ASoC: amd: move the call to devm_kzalloc below platform_get

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Date:   Wed, 21 Oct 2020 15:03:02 +0800
From:   Defang Bo <bodefang@....com>
To:     perex@...ex.cz
Cc:     tiwai@...e.com, lgirdwood@...il.com,
        Vishnuvardhanrao.Ravulapati@....com, akshu.agrawal@....com,
        weiyongjun1@...wei.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, Defang Bo <bodefang@....com>
Subject: [PATCH v2] ASoC: amd: move the call to devm_kzalloc below platform_get_resource()

Just as the commit <4cb79ef9c6c4>("ASoC: amd: Fix potential NULL pointer dereference"),it makes no sense to allocate any resources if platform_get_resource fails,so move the call to devm_kzalloc() below the mentioned code.

Signed-off-by: Defang Bo <bodefang@....com>
---
 sound/soc/amd/raven/acp3x-i2s.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c
index c9c69eb..04ec603 100644
--- a/sound/soc/amd/raven/acp3x-i2s.c
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -307,9 +307,11 @@ static int acp3x_dai_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
 		return -ENOMEM;
 	}
+
 	adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data), GFP_KERNEL);
 	if (!adata)
 		return -ENOMEM;
+
 	adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
 						resource_size(res));
 	if (!adata->acp3x_base)
-- 
1.9.1