On Fri, 22 Jun 2018 12:41:14 +0200, Robert Jarzmik wrote: > > Takashi Iwai <ti...@suse.de> writes: > > >> Special review query: review the "return of_node_get(node)", which > >> assumes that upon device removal, of_put_node(dev.of_node) will be > >> called... > > > > Is it really done automagically? I couldn't spot it. > Neither could I ... > > I based this on device_set_of_node_from_dev(), and the it "seemed" logical to > me > that a device probed from devicetree would take a refcnt on the devicetree > node. > > As the "logical" conflicted with my search for the automagical of_node_get(), > I > need the special review query.
Hm, some of these users (e.g. drivers/usb/core/*) do call of_node_put() properly at releasing, but some look leaking to me. I don't think we have the common code in the driver core to release dev->of_node, at least. If any, this should be done in ac97_codec_release(), I suppose. Takashi
