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| author | Ameer Hamza <amhamza.mgc@gmail.com> | 2021-12-05 23:42:00 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-12-06 16:49:26 +0300 |
| commit | c686316ec1210d43653c91e104c1e4cd0156dc89 (patch) | |
| tree | 434c791e2296c36139ac65ade1836444633fa6ea /sound/soc/generic | |
| parent | e733ab7e3e5dc1bf7d34e050e839fc902ce7ff98 (diff) | |
| download | linux-c686316ec1210d43653c91e104c1e4cd0156dc89.tar.xz | |
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/20211205204200.7852-1-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 | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/soc/generic/test-component.c b/sound/soc/generic/test-component.c index 85385a771d80..8fc97d3ff011 100644 --- a/sound/soc/generic/test-component.c +++ b/sound/soc/generic/test-component.c @@ -532,13 +532,16 @@ static int test_driver_probe(struct platform_device *pdev) 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 = of_id->data; + const struct test_adata *adata; 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"); |