Commit c686316e authored by Ameer Hamza's avatar Ameer Hamza Committed by Mark Brown

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: default avatarAmeer Hamza <amhamza.mgc@gmail.com>
Link: https://lore.kernel.org/r/20211205204200.7852-1-amhamza.mgc@gmail.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent e733ab7e
......@@ -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");
......
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