[PATCH RESEND 4/4] phy: qcom-qmp-usb: Use dev_err_probe() to simplify code

[Yuan Can]

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 at huawei.com>
Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
Reviewed-by: Andrew Halaney <ahalaney at redhat.com>
---
 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