In the event that no channels (child nodes) are defined, the adc5 driver
will provide a generic error message indicating that adc5_get_fw_data()
returned -EINVAL. In all other error cases we get two error messages,
one helpful and the generic one.
Add a specific error message for the no channels case, and drop the
generic one, in order to improve the generates log prints in both cases.
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxxxx>
---
drivers/iio/adc/qcom-spmi-adc5.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
index 9b69f40beed8..af3c2f659f5e 100644
--- a/drivers/iio/adc/qcom-spmi-adc5.c
+++ b/drivers/iio/adc/qcom-spmi-adc5.c
@@ -830,7 +830,7 @@ static int adc5_get_fw_data(struct adc5_chip *adc)
adc->nchannels = device_get_child_node_count(adc->dev);
if (!adc->nchannels)
- return -EINVAL;
+ return dev_err_probe(adc->dev, -EINVAL, "no channels defined\n");
adc->iio_chans = devm_kcalloc(adc->dev, adc->nchannels,
sizeof(*adc->iio_chans), GFP_KERNEL);
@@ -903,7 +903,7 @@ static int adc5_probe(struct platform_device *pdev)
ret = adc5_get_fw_data(adc);
if (ret)
- return dev_err_probe(dev, ret, "adc get dt data failed\n");
+ return ret;
irq_eoc = platform_get_irq(pdev, 0);
if (irq_eoc < 0) {
---
base-commit: 58ca61c1a866bfdaa5e19fb19a2416764f847d75
change-id: 20241004-spmi-adc5-no-channel-error-8c3203391103
Best regards,
--
Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxxxx>
