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authorJohan Hovold <johan@kernel.org>2026-03-06 11:51:42 +0300
committerPing-Ke Shih <pkshih@realtek.com>2026-03-16 08:59:46 +0300
commit68e7d359a5eeea75197626c800d082955032e30a (patch)
tree97c58019ac266e46b312340c90dad15f5208c9b5
parentf8a2fc809bfeb49130709b31a4d357a049f28547 (diff)
downloadlinux-68e7d359a5eeea75197626c800d082955032e30a.tar.xz
wifi: rtl818x: 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 <johan@kernel.org> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20260306085144.12064-17-johan@kernel.org
-rw-r--r--drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c b/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
index f7e0f6573180..1d21c468a236 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c
@@ -1475,8 +1475,6 @@ static int rtl8187_probe(struct usb_interface *intf,
usb_set_intfdata(intf, dev);
priv->udev = udev;
- usb_get_dev(udev);
-
skb_queue_head_init(&priv->rx_queue);
BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels));
@@ -1663,7 +1661,6 @@ static int rtl8187_probe(struct usb_interface *intf,
err_free_dmabuf:
kfree(priv->io_dmabuf);
usb_set_intfdata(intf, NULL);
- usb_put_dev(udev);
err_free_dev:
ieee80211_free_hw(dev);
return err;
@@ -1685,7 +1682,6 @@ static void rtl8187_disconnect(struct usb_interface *intf)
priv = dev->priv;
usb_reset_device(priv->udev);
- usb_put_dev(interface_to_usbdev(intf));
kfree(priv->io_dmabuf);
ieee80211_free_hw(dev);
}