From: Francesco Dolcini <francesco@dolcini.it>
To: Johan Hovold <johan@kernel.org>
Cc: linux-wireless@vger.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>,
libertas-dev@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 04/13] wifi: mwifiex: drop redundant device reference
Date: Fri, 6 Mar 2026 10:46:07 +0100 [thread overview]
Message-ID: <20260306094607.GA34779@francesco-nb> (raw)
In-Reply-To: <20260305110713.17725-5-johan@kernel.org>
On Thu, Mar 05, 2026 at 12:07:04PM +0100, Johan Hovold wrote:
> 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: Francesco Dolcini <francesco.dolcini@toradex.com>
next prev parent reply other threads:[~2026-03-06 9:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-05 11:07 [PATCH 00/13] wifi: drop redundant USB device references Johan Hovold
2026-03-05 11:07 ` [PATCH 01/13] wifi: at76c50x: drop redundant device reference Johan Hovold
2026-03-05 11:07 ` [PATCH 02/13] wifi: libertas: " Johan Hovold
2026-03-05 11:07 ` [PATCH 03/13] wifi: libertas_tf: " Johan Hovold
2026-03-05 11:07 ` [PATCH 04/13] wifi: mwifiex: " Johan Hovold
2026-03-06 9:46 ` Francesco Dolcini [this message]
2026-03-05 11:07 ` [PATCH 05/13] wifi: mt76: " Johan Hovold
2026-03-05 11:07 ` [PATCH 06/13] wifi: mt76x0u: " Johan Hovold
2026-03-05 11:07 ` [PATCH 07/13] wifi: mt76x2u: " Johan Hovold
2026-03-05 11:07 ` [PATCH 08/13] wifi: mt76: mt792xu: " Johan Hovold
2026-03-05 11:07 ` [PATCH 09/13] wifi: mt7601u: " Johan Hovold
2026-03-05 11:07 ` [PATCH 10/13] wifi: rt2x00: " Johan Hovold
2026-03-05 13:37 ` Stanislaw Gruszka
2026-03-05 14:15 ` Johan Hovold
2026-03-05 16:52 ` Stanislaw Gruszka
2026-03-05 11:07 ` [PATCH 11/13] wifi: rtl818x: " Johan Hovold
2026-03-05 11:07 ` [PATCH 12/13] wifi: rtl8xxxu: " Johan Hovold
2026-03-05 11:07 ` [PATCH 13/13] wifi: rtlwifi: usb: " Johan Hovold
2026-03-06 1:40 ` [PATCH 00/13] wifi: drop redundant USB device references Ping-Ke Shih
2026-03-06 8:09 ` Johan Hovold
2026-03-06 9:04 ` Ping-Ke Shih
2026-03-06 9:34 ` Johan Hovold
2026-03-06 9:36 ` Ping-Ke Shih
2026-03-06 9:49 ` Greg Kroah-Hartman
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