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@xxxxxxxxx>
---
changes in v2:
Replace of_match_device() with of_device_get_match_data to simplify the
logic as suggested by Kuninori Morimoto
---
sound/soc/generic/test-component.c | 8 ++------
1 file 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;
--
2.25.1
