From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Johan Hovold <johan@kernel.org>, linux-wireless@vger.kernel.org
Cc: Jeff Johnson <jjohnson@kernel.org>,
Brian Norris <briannorris@chromium.org>,
Francesco Dolcini <francesco@dolcini.it>,
Felix Fietkau <nbd@nbd.name>,
Lorenzo Bianconi <lorenzo@kernel.org>,
Ryder Lee <ryder.lee@mediatek.com>,
Shayne Chen <shayne.chen@mediatek.com>,
Sean Wang <sean.wang@mediatek.com>,
Jakub Kicinski <kuba@kernel.org>,
Stanislaw Gruszka <stf_xl@wp.pl>,
Hin-Tak Leung <hintak.leung@gmail.com>,
Jes Sorensen <Jes.Sorensen@gmail.com>,
Ping-Ke Shih <pkshih@realtek.com>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Claudiu Beznea <claudiu.beznea@tuxon.dev>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
libertas-dev@lists.infradead.org, linux-kernel@vger.kernel.org,
Johan Hovold <johan@kernel.org>
Subject: Re: [PATCH v2 03/18] wifi: ath9k: drop redundant device reference
Date: Mon, 09 Mar 2026 12:45:13 +0100 [thread overview]
Message-ID: <87o6kxp6pi.fsf@toke.dk> (raw)
In-Reply-To: <20260306085144.12064-4-johan@kernel.org>
Johan Hovold <johan@kernel.org> writes:
> 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>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
next prev parent reply other threads:[~2026-03-09 11:52 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-06 8:51 [PATCH v2 00/18] wifi: drop redundant USB device references Johan Hovold
2026-03-06 8:51 ` [PATCH v2 01/18] wifi: ath6kl: drop redundant device reference Johan Hovold
2026-03-06 8:51 ` [PATCH v2 02/18] wifi: ath6kl: rename disconnect callback Johan Hovold
2026-03-06 8:51 ` [PATCH v2 03/18] wifi: ath9k: drop redundant device reference Johan Hovold
2026-03-09 11:45 ` Toke Høiland-Jørgensen [this message]
2026-03-06 8:51 ` [PATCH v2 04/18] wifi: ath10k: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 05/18] wifi: ath10k: rename disconnect callback Johan Hovold
2026-03-06 8:51 ` [PATCH v2 06/18] wifi: at76c50x: drop redundant device reference Johan Hovold
2026-03-06 8:51 ` [PATCH v2 07/18] wifi: libertas: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 08/18] wifi: libertas_tf: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 09/18] wifi: mwifiex: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 10/18] wifi: mt76: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 11/18] wifi: mt76x0u: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 12/18] wifi: mt76x2u: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 13/18] wifi: mt76: mt792xu: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 14/18] wifi: mt7601u: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 15/18] wifi: rt2x00: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 16/18] wifi: rtl818x: " Johan Hovold
2026-03-16 6:02 ` Ping-Ke Shih
2026-03-06 8:51 ` [PATCH v2 17/18] wifi: rtl8xxxu: " Johan Hovold
2026-03-06 8:51 ` [PATCH v2 18/18] wifi: rtw88: fix device leak on probe failure Johan Hovold
2026-03-06 21:39 ` [PATCH v2 00/18] wifi: drop redundant USB device references Jeff Johnson
2026-03-09 6:27 ` Johannes Berg
2026-03-09 14:25 ` Jeff Johnson
2026-03-10 15:31 ` (subset) " Jeff Johnson
2026-03-24 8:31 ` Johan Hovold
2026-03-24 8:40 ` Ping-Ke Shih
2026-03-24 8:45 ` Johan Hovold
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