Commit 3f81d9aa authored by Shailendra Verma's avatar Shailendra Verma Committed by Mark Brown

ASoC: davinci - Fix possible NULL derefrence.

of_match_device could return NULL, and so can cause a NULL
pointer dereference later.
Signed-off-by: default avatarShailendra Verma <shailendra.v@samsung.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent a5de5b74
......@@ -358,13 +358,20 @@ static struct snd_soc_card evm_soc_card = {
static int davinci_evm_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *match =
of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
struct snd_soc_dai_link *dai = (struct snd_soc_dai_link *) match->data;
const struct of_device_id *match;
struct snd_soc_dai_link *dai;
struct snd_soc_card_drvdata_davinci *drvdata = NULL;
struct clk *mclk;
int ret = 0;
match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
if (!match) {
dev_err(&pdev->dev, "Error: No device match found\n");
return -ENODEV;
}
dai = (struct snd_soc_dai_link *) match->data;
evm_soc_card.dai_link = dai;
dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
......
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