In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs. It's more simple in error path.
---
drivers/video/backlight/pwm_bl.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index c0523a0269ee..ae858e3bd38f 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -513,9 +513,8 @@ static int pwm_backlight_probe(struct platform_device *pdev)
}
if (IS_ERR(pb->pwm)) {
- ret = PTR_ERR(pb->pwm);
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev, "unable to request PWM\n");
+ ret = dev_err_probe(&pdev->dev, PTR_ERR(pb->pwm),
+ "unable to request PWM\n");
goto err_alloc;
}
--
2.25.1
