Prints the error number along with error message when any error occurs. This helps on getting the reason of failure quickly from log without any code instrument.
Signed-off-by: Laxman Dewangan <[email protected]> Cc: Lee Jones <[email protected]> --- drivers/regulator/pwm-regulator.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 4689d62..9db67a1 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -277,16 +277,18 @@ static int pwm_regulator_probe(struct platform_device *pdev) drvdata->pwm = devm_pwm_get(&pdev->dev, NULL); if (IS_ERR(drvdata->pwm)) { - dev_err(&pdev->dev, "Failed to get PWM\n"); - return PTR_ERR(drvdata->pwm); + ret = PTR_ERR(drvdata->pwm); + dev_err(&pdev->dev, "Failed to get PWM, %d\n", ret); + return ret; } regulator = devm_regulator_register(&pdev->dev, &drvdata->desc, &config); if (IS_ERR(regulator)) { - dev_err(&pdev->dev, "Failed to register regulator %s\n", - drvdata->desc.name); - return PTR_ERR(regulator); + ret = PTR_ERR(regulator); + dev_err(&pdev->dev, "Failed to register regulator %s, %d\n", + drvdata->desc.name, ret); + return ret; } return 0; -- 2.1.4
