4.17-stable review patch. If anyone has any objections, please let me know.
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From: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com
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@vger.kernel.org # v4.14+ Signed-off-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Reviewed-by: Simon Horman horms+renesas@verge.net.au Signed-off-by: Felipe Balbi felipe.balbi@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/gadget/udc/renesas_usb3.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -333,6 +333,7 @@ struct renesas_usb3 { struct extcon_dev *extcon; struct work_struct extcon_work; struct phy *phy; + struct dentry *dentry;
struct renesas_usb3_ep *usb3_ep; int num_usb3_eps; @@ -2393,8 +2394,12 @@ static void renesas_usb3_debugfs_init(st
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 ------------------------------------------------*/ @@ -2402,6 +2407,7 @@ static int renesas_usb3_remove(struct pl { 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);