linux-kernel - [PATCH 2/2] USB: EHCI: ehci-mv: use a unique bus name

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Message-Id: <20200309130014.548168-2-lkundrak@v3.sk>
Date:   Mon,  9 Mar 2020 14:00:14 +0100
From:   Lubomir Rintel <lkundrak@...sk>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lubomir Rintel <lkundrak@...sk>
Subject: [PATCH 2/2] USB: EHCI: ehci-mv: use a unique bus name

In case there are multiple Marvell EHCI blocks in system, we need a
different bus name for each one. Otherwise debugfs gets mildly upset about
a directory name in usb/ehci:

  debugfs: Directory 'mv ehci' with parent 'ehci' already present!

Signed-off-by: Lubomir Rintel <lkundrak@...sk>
---
 drivers/usb/host/ehci-mv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index ddb668963955f..1300c457d9ed6 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -115,7 +115,7 @@ static int mv_ehci_probe(struct platform_device *pdev)
 	if (usb_disabled())
 		return -ENODEV;
 
-	hcd = usb_create_hcd(&ehci_platform_hc_driver, &pdev->dev, "mv ehci");
+	hcd = usb_create_hcd(&ehci_platform_hc_driver, &pdev->dev, dev_name(&pdev->dev));
 	if (!hcd)
 		return -ENOMEM;
 
-- 
2.25.1