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usb: gadget: rcar: Fix gadget registration lifecycle in remove

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The driver currently fails to unregister the USB gadget when the
device is removed or the driver is unbound. This leads to dangling
pointers in the UDC core and potential memory corruption.

Add a call to usb_del_gadget_udc() in the remove path to ensure
a clean teardown of the gadget interface.

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Michele Bisogno <micbis.openwrt@gmail.com>
This commit is contained in:
Michele Bisogno
2026-04-26 09:43:17 +02:00
committed by Marek Vasut
parent 9f61fd5b80
commit 6602a93d39
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/rcar/common.c
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@@ -447,8 +447,11 @@ err_clk:
static int usbhs_udc_otg_remove(struct udevice *dev)
{
struct usbhs_priv_otg_data *priv = dev_get_priv(dev);
struct usb_gadget *gadget;
usbhs_rcar3_power_ctrl(&priv->usbhs_priv, false);
gadget = usbhsg_get_gadget(&priv->usbhs_priv);
usb_del_gadget_udc(gadget);
usbhs_mod_remove(&priv->usbhs_priv);
usbhs_fifo_remove(&priv->usbhs_priv);
usbhs_pipe_remove(&priv->usbhs_priv);