linux-kernel - [PATCH v2] usb: dwc3: Remove the checks of -ENOSYS

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Message-ID: <HK0PR01MB2801E19D4FE569545BB7592DF8A19@HK0PR01MB2801.apcprd01.prod.exchangelabs.com>
Date:   Fri,  3 Jun 2022 13:52:15 +0530
From:   Kushagra Verma <kushagra765@...look.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] usb: dwc3: Remove the checks of -ENOSYS

Commit 57303488cd37d ("usb: dwc3: adapt dwc3 core to use Generic PHY
Framework") added if statements that check 'ret == -ENOSYS || ret ==
-ENODEV', but the function phy_get() which is called by devm_phy_get()
returns the phy driver or -ENODEV if the phy driver was not found. So,
remove the check of -ENOSYS in the if statements.

Signed-off-by: Kushagra Verma <kushagra765@...look.com>
---
Changes since v1:
 - Include commit description and write a better changelog
---
 drivers/usb/dwc3/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index de3f52a63595..adf655d685bc 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1284,7 +1284,7 @@ static int dwc3_core_get_phy(struct dwc3 *dwc)
 	dwc->usb2_generic_phy = devm_phy_get(dev, "usb2-phy");
 	if (IS_ERR(dwc->usb2_generic_phy)) {
 		ret = PTR_ERR(dwc->usb2_generic_phy);
-		if (ret == -ENOSYS || ret == -ENODEV)
+		if (ret == -ENODEV)
 			dwc->usb2_generic_phy = NULL;
 		else
 			return dev_err_probe(dev, ret, "no usb2 phy configured\n");
@@ -1293,7 +1293,7 @@ static int dwc3_core_get_phy(struct dwc3 *dwc)
 	dwc->usb3_generic_phy = devm_phy_get(dev, "usb3-phy");
 	if (IS_ERR(dwc->usb3_generic_phy)) {
 		ret = PTR_ERR(dwc->usb3_generic_phy);
-		if (ret == -ENOSYS || ret == -ENODEV)
+		if (ret == -ENODEV)
 			dwc->usb3_generic_phy = NULL;
 		else
 			return dev_err_probe(dev, ret, "no usb3 phy configured\n");
-- 
2.36.1