Hi Peter,
Just trying to understand.
In omap-twl4030.c file probe function :-
dai_node = of_parse_phandle(node, "ti,mcbsp", 0);
if (!dai_node) {
dev_err(&pdev->dev, "McBSP node is not provided\n");
return -EINVAL;
}
Here "of_parse_phandle()" is used to get "of_device" node pointer.
of_parse_phandle() suggest to use of_node_put() on it when done.
It looks when code request for an "of_device" node, kernel maintains
"refcount" for this.
It check "refcount" before giving pointer of of_device node and WARN_ON()
in case of refcount > 0 and increase it on success.
Should this code need to use of_node_put() on the requested "of_device" when
done
so that this can be get again ?
I am taking reference of Linux-next kernel.
I'm sorry if this question is very vague or missing something.
Thanks,
Anil
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