diff mbox series

[4/6] leds: lm3601x: Improve error reporting for problems during .remove()

Message ID 20220628140313.74984-5-u.kleine-koenig@pengutronix.de
State Superseded
Headers show
Series [1/6] drm/i2c/sil164: Drop no-op remove function | expand

Commit Message

Uwe Kleine-König June 28, 2022, 2:03 p.m. UTC 
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(-)
diff mbox series

Patch

diff --git a/drivers/leds/flash/leds-lm3601x.c b/drivers/leds/flash/leds-lm3601x.c
index 3d1272748201..37e1d6e68687 100644
--- a/drivers/leds/flash/leds-lm3601x.c
+++ b/drivers/leds/flash/leds-lm3601x.c
@@ -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[] = {