[PATCH v1 1/1] iio: adc: qcom-spmi-adc5: Fix the channel name

From: Andy Shevchenko
Date: Tue Jan 17 2023 - 04:41:44 EST


The node name can contain an address part which is not used by
the driver. Cut it out before assigning the channel name.

Fixes: 4f47a236a23d ("iio: adc: qcom-spmi-adc5: convert to device properties")
Reported-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/iio/adc/qcom-spmi-adc5.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/qcom-spmi-adc5.c b/drivers/iio/adc/qcom-spmi-adc5.c
index e90c299c913a..c52bf6722a6a 100644
--- a/drivers/iio/adc/qcom-spmi-adc5.c
+++ b/drivers/iio/adc/qcom-spmi-adc5.c
@@ -628,12 +628,19 @@ static int adc5_get_fw_channel_data(struct adc5_chip *adc,
struct fwnode_handle *fwnode,
const struct adc5_data *data)
{
- const char *name = fwnode_get_name(fwnode), *channel_name;
+ const char *name, *channel_name;
u32 chan, value, varr[2];
u32 sid = 0;
int ret;
struct device *dev = adc->dev;

+ name = devm_kasprintf(dev, GFP_KERNEL, "%pfwP", fwnode);
+ if (!name)
+ return -ENOMEM;
+
+ /* Cut the address part */
+ name[strchrnul(name, '@') - name] = '\0';
+
ret = fwnode_property_read_u32(fwnode, "reg", &chan);
if (ret) {
dev_err(dev, "invalid channel number %s\n", name);
--
2.39.0