From patchwork Fri Nov 17 09:59:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 13458717 X-Patchwork-Delegate: kuba@kernel.org Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49D87AD for ; Fri, 17 Nov 2023 02:00:01 -0800 (PST) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1r3vdd-0000JE-JR; Fri, 17 Nov 2023 10:59:49 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1r3vdd-009eG8-5V; Fri, 17 Nov 2023 10:59:49 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r3vdc-002zWW-Sc; Fri, 17 Nov 2023 10:59:48 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Alexander Aring , Stefan Schmidt , Miquel Raynal , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-wpan@vger.kernel.org, netdev@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH net-next 10/10] ieee802154: hwsim: Convert to platform remove callback returning void Date: Fri, 17 Nov 2023 10:59:33 +0100 Message-ID: <20231117095922.876489-11-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231117095922.876489-1-u.kleine-koenig@pengutronix.de> References: <20231117095922.876489-1-u.kleine-koenig@pengutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1763; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=OySE8VQ225pwhwuZLy68C4sg5i3fP0VIUcSiYfkzQmE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlVzmGfTaQbU/uL7NMdAV08B2HUVvhb4053Ecsa AnNjSiz5ZmJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZVc5hgAKCRCPgPtYfRL+ Trv/B/4rMgdZ1dP5QFXvp03L1vFtdVKJHccFaLyyR3o9F1YozR90WlSousX8KuoXq/iErzfA5Mh 4/bB1n4E+jvyOgq643wW4D+6r6aNJk5Pa0T7nGci9RhLpcbZo+CJFtCOWiASrydwLkMStPidqTN 9rcDLo00tY2wP8OlP82sFRYI+axYUASqiLimKZlOP431xej0gH/NGcZKieDSMc3imBuZBNYKesv CfxUTYLG36V9i9Fhton8CiD/FYbdfNAym8F8LPPhey7NCuvOIwGXlQFZpHnZRHMrV5xyWPWsc7D B+MYvVq/ONyZMv+3AfYD9F9OcYd6Hjd950kE5sofdHFwAaQg X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Stefan Schmidt --- drivers/net/ieee802154/mac802154_hwsim.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c index 31cba9aa7636..2c2483bbe780 100644 --- a/drivers/net/ieee802154/mac802154_hwsim.c +++ b/drivers/net/ieee802154/mac802154_hwsim.c @@ -1035,7 +1035,7 @@ static int hwsim_probe(struct platform_device *pdev) return err; } -static int hwsim_remove(struct platform_device *pdev) +static void hwsim_remove(struct platform_device *pdev) { struct hwsim_phy *phy, *tmp; @@ -1043,13 +1043,11 @@ static int hwsim_remove(struct platform_device *pdev) list_for_each_entry_safe(phy, tmp, &hwsim_phys, list) hwsim_del(phy); mutex_unlock(&hwsim_phys_lock); - - return 0; } static struct platform_driver mac802154hwsim_driver = { .probe = hwsim_probe, - .remove = hwsim_remove, + .remove_new = hwsim_remove, .driver = { .name = "mac802154_hwsim", },