[PATCH 4.19 127/148] leds: pwm: silently error out on EPROBE_DEFER
From: Greg Kroah-Hartman
Date: Fri Jan 11 2019 - 09:40:21 EST
4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
commit 9aec30371fb095a0c9415f3f0146ae269c3713d8 upstream.
When probing, if we fail to get the pwm due to probe deferal, we shouldn't
print an error message. Just be silent in this case.
Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@xxxxxxxxx>
Cc: Benjamin Drung <bdrung@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/leds/leds-pwm.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -100,8 +100,9 @@ static int led_pwm_add(struct device *de
led_data->pwm = devm_pwm_get(dev, led->name);
if (IS_ERR(led_data->pwm)) {
ret = PTR_ERR(led_data->pwm);
- dev_err(dev, "unable to request PWM for %s: %d\n",
- led->name, ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "unable to request PWM for %s: %d\n",
+ led->name, ret);
return ret;
}