From: Johan Hovold <johan@kernel.org>
Date: Thu, 30 Apr 2026 08:33:35 +0000 (+0200)
Subject: wifi: mt7601u: drop redundant device reference
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2172c96a1eb495966923ebbbe5965e3158875534;p=thirdparty%2Fkernel%2Flinux.git

wifi: mt7601u: 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>
Link: https://patch.msgid.link/20260430083335.215239-6-johan@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/drivers/net/wireless/mediatek/mt7601u/usb.c b/drivers/net/wireless/mediatek/mt7601u/usb.c
index c41ae251cb95d..9306870cbc912 100644
--- a/drivers/net/wireless/mediatek/mt7601u/usb.c
+++ b/drivers/net/wireless/mediatek/mt7601u/usb.c
@@ -274,7 +274,6 @@ static int mt7601u_probe(struct usb_interface *usb_intf,
 	if (!dev)
 		return -ENOMEM;
 
-	usb_dev = usb_get_dev(usb_dev);
 	usb_reset_device(usb_dev);
 
 	usb_set_intfdata(usb_intf, dev);
@@ -319,7 +318,6 @@ err_hw:
 	mt7601u_cleanup(dev);
 err:
 	usb_set_intfdata(usb_intf, NULL);
-	usb_put_dev(interface_to_usbdev(usb_intf));
 
 	destroy_workqueue(dev->stat_wq);
 	ieee80211_free_hw(dev->hw);
@@ -334,7 +332,6 @@ static void mt7601u_disconnect(struct usb_interface *usb_intf)
 	mt7601u_cleanup(dev);
 
 	usb_set_intfdata(usb_intf, NULL);
-	usb_put_dev(interface_to_usbdev(usb_intf));
 
 	destroy_workqueue(dev->stat_wq);
 	ieee80211_free_hw(dev->hw);