[PATCH 09/11] soundwire: qcom: check of_property_read status

[Bard Liao]

From: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>

Cppcheck complains:

drivers/soundwire/qcom.c:773:6: style: Variable 'ret' is assigned a
value that is never used. [unreadVariable]
 ret = of_property_read_u8_array(np, "qcom,ports-block-pack-mode",
     ^

The return value is checked for all other cases, not sure why it was
missed here.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski at linux.intel.com>
Reviewed-by: Rander Wang <rander.wang at intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao at linux.intel.com>
---
 drivers/soundwire/qcom.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 6d22df01f354..ae33cc414318 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -772,6 +772,9 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
 
 	ret = of_property_read_u8_array(np, "qcom,ports-block-pack-mode",
 					bp_mode, nports);
+	if (ret)
+		return ret;
+
 	for (i = 0; i < nports; i++) {
 		ctrl->pconfig[i].si = si[i];
 		ctrl->pconfig[i].off1 = off1[i];
-- 
2.17.1