linux-kernel - [PATCH] usb: cdns3: Removes duplicated call to the cdns3_exit

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Date:   Thu, 13 Aug 2020 09:10:54 +0200
From:   Pawel Laszczak <pawell@...ence.com>
To:     <gregkh@...uxfoundation.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <balbi@...nel.org>
CC:     <rogerq@...com>, <peter.chen@....com>, <weiyongjun1@...wei.com>,
        <jpawar@...ence.com>, <kurahul@...ence.com>, <sparmar@...ence.com>,
        Pawel Laszczak <pawell@...ence.com>
Subject: [PATCH] usb: cdns3: Removes duplicated call to the cdns3_exit_roles function

To avoid double calling of function cdns3_exit_roles when initialization
failed patch removes invoking this function from cdns3_core_init_role.
This function is invoked again from cdns3_probe when
cdns3_core_init_role returns error code.

Signed-off-by: Pawel Laszczak <pawell@...ence.com>
---
 drivers/usb/cdns3/core.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 5c1586ec7824..c22c7224642a 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -132,7 +132,7 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
 		if (ret) {
 			dev_err(dev, "Host initialization failed with %d\n",
 				ret);
-			goto err;
+			return ret;
 		}
 	}
 
@@ -141,7 +141,7 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
 		if (ret) {
 			dev_err(dev, "Device initialization failed with %d\n",
 				ret);
-			goto err;
+			return ret;
 		}
 	}
 
@@ -149,38 +149,34 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
 
 	ret = cdns3_drd_update_mode(cdns);
 	if (ret)
-		goto err;
+		return ret;
 
 	/* Initialize idle role to start with */
 	ret = cdns3_role_start(cdns, USB_ROLE_NONE);
 	if (ret)
-		goto err;
+		return ret;
 
 	switch (cdns->dr_mode) {
 	case USB_DR_MODE_OTG:
 		ret = cdns3_hw_role_switch(cdns);
 		if (ret)
-			goto err;
+			return ret;
 		break;
 	case USB_DR_MODE_PERIPHERAL:
 		ret = cdns3_role_start(cdns, USB_ROLE_DEVICE);
 		if (ret)
-			goto err;
+			return ret;
 		break;
 	case USB_DR_MODE_HOST:
 		ret = cdns3_role_start(cdns, USB_ROLE_HOST);
 		if (ret)
-			goto err;
+			return ret;
 		break;
 	default:
-		ret = -EINVAL;
-		goto err;
+		return -EINVAL;
 	}
 
 	return 0;
-err:
-	cdns3_exit_roles(cdns);
-	return ret;
 }
 
 /**
-- 
2.17.1