Hi Greg,
This was missing in 4.14-stable. Please apply to your queue.
--
Regards
Sudip
>From faba31246b3d505cf48e7231758361f32bd938d5 Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Date: Tue, 10 Apr 2018 14:38:50 +0900
Subject: [PATCH] usb: gadget: udc: renesas_usb3: should remove debugfs
commit 1990cf7c21ea185cec98c6d45a82c04481261e35 upstream
This patch fixes an issue that this driver doesn't remove its debugfs.
Fixes: 43ba968b00ea ("usb: gadget: udc: renesas_usb3: add debugfs to set the b-device mode")
Cc: <stable@xxxxxxxxxxxxxxx> # v4.14+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
---
drivers/usb/gadget/udc/renesas_usb3.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 4cfa72cb0a91..c12a1a6554ba 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -334,6 +334,7 @@ struct renesas_usb3 {
struct usb_gadget_driver *driver;
struct extcon_dev *extcon;
struct work_struct extcon_work;
+ struct dentry *dentry;
struct renesas_usb3_ep *usb3_ep;
int num_usb3_eps;
@@ -2397,8 +2398,12 @@ static void renesas_usb3_debugfs_init(struct renesas_usb3 *usb3,
file = debugfs_create_file("b_device", 0644, root, usb3,
&renesas_usb3_b_device_fops);
- if (!file)
+ if (!file) {
dev_info(dev, "%s: Can't create debugfs mode\n", __func__);
+ debugfs_remove_recursive(root);
+ } else {
+ usb3->dentry = root;
+ }
}
/*------- platform_driver ------------------------------------------------*/
@@ -2406,6 +2411,7 @@ static int renesas_usb3_remove(struct platform_device *pdev)
{
struct renesas_usb3 *usb3 = platform_get_drvdata(pdev);
+ debugfs_remove_recursive(usb3->dentry);
device_remove_file(&pdev->dev, &dev_attr_role);
usb_del_gadget_udc(&usb3->gadget);
--
2.11.0
