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. Signed-off-by: Yuan Can <yuancan@xxxxxxxxxx> Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> Reviewed-by: Andrew Halaney <ahalaney@xxxxxxxxxx> --- drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c index 93994f1a46e2..2ff2e798d6e2 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c @@ -2817,12 +2817,9 @@ static int qmp_usb_probe(struct platform_device *pdev) return ret; ret = qmp_usb_vreg_init(dev, cfg); - if (ret) { - if (ret != -EPROBE_DEFER) - dev_err(dev, "failed to get regulator supplies: %d\n", - ret); - return ret; - } + if (ret) + return dev_err_probe(dev, ret, + "failed to get regulator supplies\n"); num = of_get_available_child_count(dev->of_node); /* do we have a rogue child node ? */ -- 2.17.1