| Message ID | 20241004-spmi-adc5-no-channel-error-v1-1-1a43d13ae967@oss.qualcomm.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | iio: adc: qcom-spmi-adc5: Tidy up adc5_get_fw_data() error messages | expand |
On Fri, 04 Oct 2024 16:11:01 -0700 Bjorn Andersson <bjorn.andersson@oss.qualcomm.com> wrote: > 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@oss.qualcomm.com> In general this seems sensible. There seem to be prints in all other paths that aren't -ENOMEM which is fine. For consistency it might be nice to have a follow up that uses dev_err_probe() in adc5_get_fw_channel_data() but that can be handled separately. Applied to the togreg branch of iio.git and initially pushed out as testing for 0-day to take a look. Thanks, Jonathan > --- > 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,
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) {
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@oss.qualcomm.com> --- drivers/iio/adc/qcom-spmi-adc5.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- base-commit: 58ca61c1a866bfdaa5e19fb19a2416764f847d75 change-id: 20241004-spmi-adc5-no-channel-error-8c3203391103 Best regards,