hwmon: (max31722) Warn about failure to put device in stand-by in .remove()

When an spi driver's remove function returns a non-zero error code
nothing happens apart from emitting a generic error message. Make this
error message more device specific and return zero instead.

Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211012153945.2651412-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/max31722.c b/drivers/hwmon/max31722.c
index 613338c..4cf4fe6 100644 (file)
--- a/drivers/hwmon/max31722.c
+++ b/drivers/hwmon/max31722.c
@@ -103,10 +103,16 @@ static int max31722_probe(struct spi_device *spi)
 static int max31722_remove(struct spi_device *spi)
 {
        struct max31722_data *data = spi_get_drvdata(spi);
+       int ret;
 
        hwmon_device_unregister(data->hwmon_dev);
 
-       return max31722_set_mode(data, MAX31722_MODE_STANDBY);
+       ret = max31722_set_mode(data, MAX31722_MODE_STANDBY);
+       if (ret)
+               /* There is nothing we can do about this ... */
+               dev_warn(&spi->dev, "Failed to put device in stand-by mode\n");
+
+       return 0;
 }
 
 static int __maybe_unused max31722_suspend(struct device *dev)