[PATCH 4.9 08/75] ASoC: da7218: fix fix child-node lookup

Greg Kroah-Hartman
2018-01-01T14:34:34Z

From: Johan Hovold <johan@kernel.org>

commit bc6476d6c1edcb9b97621b5131bd169aa81f27db upstream.

Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.

To make things worse, the parent codec node was also prematurely freed.

Fixes: 4d50934abd22 ("ASoC: da7218: Add da7218 codec driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
sound/soc/codecs/da7218.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/codecs/da7218.c
+++ b/sound/soc/codecs/da7218.c
@@ -2519,7 +2519,7 @@ static struct da7218_pdata *da7218_of_to
}

if (da7218->dev_id == DA7218_DEV_ID) {
- hpldet_np = of_find_node_by_name(np, "da7218_hpldet");
+ hpldet_np = of_get_child_by_name(np, "da7218_hpldet");
if (!hpldet_np)
return pdata;