@@ -443,10 +443,15 @@ static int lm3601x_probe(struct i2c_client *client)
static int lm3601x_remove(struct i2c_client *client)
{
struct lm3601x_led *led = i2c_get_clientdata(client);
+ int ret;
- return regmap_update_bits(led->regmap, LM3601X_ENABLE_REG,
- LM3601X_ENABLE_MASK,
- LM3601X_MODE_STANDBY);
+ ret = regmap_update_bits(led->regmap, LM3601X_ENABLE_REG,
+ LM3601X_ENABLE_MASK, LM3601X_MODE_STANDBY);
+ if (ret)
+ dev_warn(&client->dev,
+ "Failed to put into standby (%pe)\n", ERR_PTR(ret));
+
+ return 0;
}
static const struct i2c_device_id lm3601x_id[] = {
Returning an error value in an i2c remove callback results in a generic error message being emitted by the i2c core, but otherwise it doesn't make a difference. The device goes away anyhow and the devm cleanups are called. So instead of triggering the generic i2c error message, emit a more helpful message if a problem occurs and return 0 to suppress the generic message. This patch is a preparation for making i2c remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Forwarded: id:20220513102516.271920-1-u.kleine-koenig@pengutronix.de --- drivers/leds/flash/leds-lm3601x.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)