[PATCH v2 3/7] ASoC: cs42l43: Check error from device_property_read_u32_array()

[Charles Keepax <ckeepax@opensource.cirrus.com>]

Whilst reading cirrus,buttons-ohms the error from
device_property_read_u32_array() is not checked, whilst there is a
preceding device_property_count_u32() which is checked the property
read can still fail. Add the missing check.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---

Changes since v1:
 - Add () to funcs in commit message

Thanks,
Charles

 sound/soc/codecs/cs42l43-jack.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/cs42l43-jack.c b/sound/soc/codecs/cs42l43-jack.c
index 4f7a405b7e06a..67ccdc8bab6f6 100644
--- a/sound/soc/codecs/cs42l43-jack.c
+++ b/sound/soc/codecs/cs42l43-jack.c
@@ -106,8 +106,13 @@ int cs42l43_set_jack(struct snd_soc_component *component,
 			goto error;
 		}
 
-		device_property_read_u32_array(cs42l43->dev, "cirrus,buttons-ohms",
-					       priv->buttons, ret);
+		ret = device_property_read_u32_array(cs42l43->dev, "cirrus,buttons-ohms",
+						     priv->buttons, ret);
+		if (ret < 0) {
+			dev_err(priv->dev, "Property cirrus,button-ohms malformed: %d\n",
+				ret);
+			goto error;
+		}
 	} else {
 		priv->buttons[0] = 70;
 		priv->buttons[1] = 185;
-- 
2.30.2