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ASoC: amd: acp: add a null check for chip_pdev structure

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BugLink: https://bugs.launchpad.net/bugs/2076435

[ Upstream commit 98d919dfee1cc402ca29d45da642852d7c9a2301 ]

When acp platform device creation is skipped, chip->chip_pdev value will
remain NULL. Add NULL check for chip->chip_pdev structure in
snd_acp_resume() function to avoid null pointer dereference.

Fixes: 088a40980e ("ASoC: amd: acp: add pm ops support for acp pci driver")
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://msgid.link/r/20240617072844.871468-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Portia Stephens <portia.stephens@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Vijendar Mukunda
2024-06-17 12:58:34 +05:30
committed by Stefan Bader
parent f480dccdf9
commit 98e9a5dd7a
1 changed files with 6 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
sound/soc/amd/acp/acp-pci.c
+6 -4
View File
@@ -199,10 +199,12 @@ static int __maybe_unused snd_acp_resume(struct device *dev)
ret = acp_init(chip);
if (ret)
dev_err(dev, "ACP init failed\n");
child = chip->chip_pdev->dev;
adata = dev_get_drvdata(&child);
if (adata)
acp_enable_interrupts(adata);
if (chip->chip_pdev) {
child = chip->chip_pdev->dev;
adata = dev_get_drvdata(&child);
if (adata)
acp_enable_interrupts(adata);
}
return ret;
}