From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 22 Jul 2020 17:07:46 +0000 (-0400)
Subject: usb: bdc: Use devm_clk_get_optional()
X-Git-Tag: block-5.9-2020-08-14~12^2~35^2~6
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=1fa645b1c92795b090ea8de314b5cecc22dbfb03;p=linux-2.6-block.git

usb: bdc: Use devm_clk_get_optional()

The BDC clock is optional and we may get an -EPROBE_DEFER error code
which would not be propagated correctly, fix this by using
devm_clk_get_optional().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
---

diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c
index 0f1617e34f38..5ff36525044e 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_core.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_core.c
@@ -493,11 +493,9 @@ static int bdc_probe(struct platform_device *pdev)
 
 	dev_dbg(dev, "%s()\n", __func__);
 
-	clk = devm_clk_get(dev, "sw_usbd");
-	if (IS_ERR(clk)) {
-		dev_info(dev, "Clock not found in Device Tree\n");
-		clk = NULL;
-	}
+	clk = devm_clk_get_optional(dev, "sw_usbd");
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
 
 	ret = clk_prepare_enable(clk);
 	if (ret) {