From fc25b384fc0bb983fe383e8392b6c2f4aafec77d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 9 Mar 2026 09:33:36 +0100 Subject: [PATCH] wifi: rtlwifi: usb: drop redundant device reference Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. Drop the redundant device reference to reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of memory leaks when drivers fail to release it. Signed-off-by: Johan Hovold Signed-off-by: Ping-Ke Shih Link: https://patch.msgid.link/20260309083336.16397-1-johan@kernel.org --- drivers/net/wireless/realtek/rtlwifi/usb.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/usb.c b/drivers/net/wireless/realtek/rtlwifi/usb.c index d35ed56d6db90..9a64df9eed39b 100644 --- a/drivers/net/wireless/realtek/rtlwifi/usb.c +++ b/drivers/net/wireless/realtek/rtlwifi/usb.c @@ -986,7 +986,6 @@ int rtl_usb_probe(struct usb_interface *intf, init_completion(&rtlpriv->firmware_loading_complete); SET_IEEE80211_DEV(hw, &intf->dev); udev = interface_to_usbdev(intf); - usb_get_dev(udev); usb_priv = rtl_usbpriv(hw); memset(usb_priv, 0, sizeof(*usb_priv)); usb_priv->dev.intf = intf; @@ -1038,7 +1037,6 @@ error_out: rtl_deinit_core(hw); error_out2: _rtl_usb_io_handler_release(hw); - usb_put_dev(udev); kfree(rtlpriv->usb_data); ieee80211_free_hw(hw); return -ENODEV; @@ -1050,7 +1048,6 @@ void rtl_usb_disconnect(struct usb_interface *intf) struct ieee80211_hw *hw = usb_get_intfdata(intf); struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); - struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); if (unlikely(!rtlpriv)) return; @@ -1072,7 +1069,6 @@ void rtl_usb_disconnect(struct usb_interface *intf) kfree(rtlpriv->usb_data); rtlpriv->cfg->ops->deinit_sw_vars(hw); _rtl_usb_io_handler_release(hw); - usb_put_dev(rtlusb->udev); usb_set_intfdata(intf, NULL); ieee80211_free_hw(hw); } -- 2.47.3