Subject: [PATCH v2 RESEND 1/5] wifi: mt76: drop redundant device reference

From: Johan Hovold <[email-masked]>
Date: Thu, 30 Apr 2026 10:33:31 +0200

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 <[email-masked]>
---
 drivers/net/wireless/mediatek/mt76/mt7615/usb.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c
index d91feffadda9..bab7b91f14be 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c
@@ -151,7 +151,6 @@ static int mt7663u_probe(struct usb_interface *usb_intf,
 		return -ENOMEM;
 
 	dev = container_of(mdev, struct mt7615_dev, mt76);
-	udev = usb_get_dev(udev);
 	usb_reset_device(udev);
 
 	usb_set_intfdata(usb_intf, dev);
@@ -193,7 +192,6 @@ static int mt7663u_probe(struct usb_interface *usb_intf,
 error:
 	mt76u_queues_deinit(&dev->mt76);
 	usb_set_intfdata(usb_intf, NULL);
-	usb_put_dev(interface_to_usbdev(usb_intf));
 
 	mt76_free_device(&dev->mt76);
 
@@ -211,7 +209,6 @@ static void mt7663u_disconnect(struct usb_interface *usb_intf)
 	mt7663u_cleanup(dev);
 
 	usb_set_intfdata(usb_intf, NULL);
-	usb_put_dev(interface_to_usbdev(usb_intf));
 
 	mt76_free_device(&dev->mt76);
 }
-- 
2.53.0