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| author | Ameer Hamza <amhamza.mgc@gmail.com> | 2021-12-07 19:23:09 +0500 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-12-09 12:31:50 +0000 |
| commit | befe304536eeef71f8529ff877444ae2b72a37db (patch) | |
| tree | 2a085964cf07ebf72f4a34f732764ec40ab593b1 /sound/soc/generic | |
| parent | 5f9155a7d2dc067d72a95b42168f944c7710c0d5 (diff) | |
| download | linux-befe304536eeef71f8529ff877444ae2b72a37db.tar.bz2 | |
ASoC: test-component: fix null pointer dereference.
Dereferncing of_id pointer will result in exception in current
implementation since of_match_device() will assign it to NULL.
Adding NULL check for protection.
Signed-off-by: Ameer Hamza <amhamza.mgc@gmail.com>
Link: https://lore.kernel.org/r/20211207142309.222820-1-amhamza.mgc@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/generic')
| -rw-r--r-- | sound/soc/generic/test-component.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/sound/soc/generic/test-component.c b/sound/soc/generic/test-component.c index 8fc97d3ff011..5da4725d9e16 100644 --- a/sound/soc/generic/test-component.c +++ b/sound/soc/generic/test-component.c @@ -531,17 +531,13 @@ static int test_driver_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device_node *node = dev->of_node; struct device_node *ep; - const struct of_device_id *of_id = of_match_device(test_of_match, &pdev->dev); - const struct test_adata *adata; + const struct test_adata *adata = of_device_get_match_data(&pdev->dev); struct snd_soc_component_driver *cdriv; struct snd_soc_dai_driver *ddriv; struct test_dai_name *dname; struct test_priv *priv; int num, ret, i; - if (!of_id) - return -EINVAL; - adata = of_id->data; num = of_graph_get_endpoint_count(node); if (!num) { dev_err(dev, "no port exits\n"); @@ -552,7 +548,7 @@ static int test_driver_probe(struct platform_device *pdev) cdriv = devm_kzalloc(dev, sizeof(*cdriv), GFP_KERNEL); ddriv = devm_kzalloc(dev, sizeof(*ddriv) * num, GFP_KERNEL); dname = devm_kzalloc(dev, sizeof(*dname) * num, GFP_KERNEL); - if (!priv || !cdriv || !ddriv || !dname) + if (!priv || !cdriv || !ddriv || !dname || !adata) return -EINVAL; priv->dev = dev; |