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iio: magnetometer: ak8975: check if gpiod read was successful

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Add a check that ensures that valid data has been read from GPIOD. If
not, log an error and return the negative read value.

Suggested-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
Reviewed-by: Maxwell Doose <m32285159@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Joshua Crofts 2026-05-11 13:26:11 +02:00 committed by Jonathan Cameron
parent cfa30b4330
commit 46dd701a39
1 changed files with 4 additions and 0 deletions
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4
drivers/iio/magnetometer/ak8975.c
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@ -658,6 +658,10 @@ static int wait_conversion_complete_gpio(struct ak8975_data *data,
timeout_ms * USEC_PER_MSEC);
if (ret)
return ret;
if (val < 0) {
dev_err(&client->dev, "Error in reading GPIOD\n");
return val;
}
ret = i2c_smbus_read_byte_data(client, data->def->ctrl_regs[ST1]);
if (ret < 0)