From patchwork Sat Feb 17 15:02:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 13561403 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E896BC54764 for ; Sat, 17 Feb 2024 15:03:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=qEqyh+krQqUO1vNrdhi2MLLrIvJyFe8YGVDFHmV5wj0=; b=D7VSfz3pBDdVyM iNMic7/KWQHPfSffc2dXUEvI01kg/Ub4LA1DrKIvOzHdxiOteHPLHlJQDZV8Pu/SeNmXLXr/sdd2W AmcwkIMf2xUY8pFfwosN+AoNoAaAui3OJa2XYMXEQ8Zn9yADXCbRy1KWPtMTRPFrme1Co+pWRFodl PiTTEuf2undYJBtEZ92fouckAVIYgbtmbD6ly9A/2B2QB6cWR7suTVhLW5k+JJSGnRyWFJ9cMw0Zx QYcd+rWnEpfpgFZhpRQeF9HgYMUrtWz+TSKYf1Kc7E05copN1FgX68XDf6/i4/oW15VtHSQKLONxg t6vtktRI67tjYRBQAi1Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rbMDb-00000005shv-1Mj1; Sat, 17 Feb 2024 15:03:07 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rbMDY-00000005sfl-47lS for linux-phy@lists.infradead.org; Sat, 17 Feb 2024 15:03:06 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 629C76141D; Sat, 17 Feb 2024 15:03:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 17518C433B1; Sat, 17 Feb 2024 15:03:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708182183; bh=POmhG3XikVsaXc0RusI64Jf3HUeMzGtS54gIumrv1I0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eEqGR0C+9C6T6cV2g4R/ygaPvBNcGscgTTbDfWpt6RqNCVCSNemlDmMiBjLINFF9K vNOWBEXAul5FUj2axKYGDdckCtDO4TfXoy/tk+8sx+M+Nax3pT9M4+S/bHKHCxiynt JVidLDi1X3iyquM1kp0a0kub0LV/yLpN3RHEru2kNVYZ1+NxnuinFZsD6q3h74J/bF QqKCFNwEidPJOkwPHGJM73U2yVQ+4BuksOAvfFpAIVLuaZV050HXeu1xqCZl2QDBHY upv4mvxbKoOiSRj0B/wbcx4RIR8QiHUJlV8SjhAA3Z57ya1yYljjfWRvPgLGCifDKc 1sh5+H+c0Jn0g== Received: from johan by xi.lan with local (Exim 4.97.1) (envelope-from ) id 1rbMDW-000000001Vo-2L8p; Sat, 17 Feb 2024 16:03:02 +0100 From: Johan Hovold To: Bjorn Andersson , Andrzej Hajda , Neil Armstrong , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Vinod Koul Cc: Jonas Karlman , Laurent Pinchart , Jernej Skrabec , Konrad Dybcio , Kishon Vijay Abraham I , Dmitry Baryshkov , Rob Clark , Abhinav Kumar , Kuogee Hsieh , freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, Johan Hovold Subject: [PATCH 1/6] drm/bridge: aux-hpd: fix OF node leaks Date: Sat, 17 Feb 2024 16:02:23 +0100 Message-ID: <20240217150228.5788-2-johan+linaro@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240217150228.5788-1-johan+linaro@kernel.org> References: <20240217150228.5788-1-johan+linaro@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240217_070305_107776_11CB6EFA X-CRM114-Status: UNSURE ( 8.51 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org The two device node references taken during allocation need to be dropped when the auxiliary device is freed. Fixes: 6914968a0b52 ("drm/bridge: properly refcount DT nodes in aux bridge drivers") Cc: Dmitry Baryshkov Cc: Neil Armstrong Signed-off-by: Johan Hovold Reviewed-by: Bjorn Andersson Reviewed-by: Dmitry Baryshkov Reviewed-by: Neil Armstrong Reviewed-by: Neil Armstrong --- drivers/gpu/drm/bridge/aux-hpd-bridge.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/bridge/aux-hpd-bridge.c b/drivers/gpu/drm/bridge/aux-hpd-bridge.c index bb55f697a181..9e71daf95bde 100644 --- a/drivers/gpu/drm/bridge/aux-hpd-bridge.c +++ b/drivers/gpu/drm/bridge/aux-hpd-bridge.c @@ -25,6 +25,7 @@ static void drm_aux_hpd_bridge_release(struct device *dev) ida_free(&drm_aux_hpd_bridge_ida, adev->id); of_node_put(adev->dev.platform_data); + of_node_put(adev->dev.of_node); kfree(adev); } @@ -74,6 +75,8 @@ struct device *drm_dp_hpd_bridge_register(struct device *parent, ret = auxiliary_device_init(adev); if (ret) { + of_node_put(adev->dev.platform_data); + of_node_put(adev->dev.of_node); ida_free(&drm_aux_hpd_bridge_ida, adev->id); kfree(adev); return ERR_PTR(ret);