On Thu, Dec 9, 2021 at 5:58 PM 王擎 [off-list ref] wrote:

quoted

quoted

From: Wang Qing <redacted>

of_find_device_by_node() takes a reference to the embedded struct device
which needs to be dropped when error return.

...

quoted

       data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
       if (!data) {
+             put_device(&cpu_pdev->dev);

If it's of_find_device_by_node() you need an of_node_put() since you're
dropping a reference on the OF node.

Label fail will drop a reference on the OF node.
Also, put_device() is called later except this branch,
we just need to add put_device() here.

I agree with you. But could you please add the info in this
commit that
the commit:
f670b274f7f6 ASoC: imx-hdmi: add put_device() after of_find_device_by_node()
is partially fixing the original issue, so we still need this fix.

Best regards
Wang Shengjiu

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