From nobody Tue Dec 2 02:30:30 2025 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EAEC735BDC9; Wed, 19 Nov 2025 13:09:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.84.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763557787; cv=none; b=UBLYtUoryC70BjaW7DsSwN9zjo4y8aV7rJo7G9ZbkYaZTc8Lz+ZyYZRAeHQrf7iq0aWDQA7K6B+kBbdvbDdRffXYGs+y7onp5fVPcldl87jOyRZIER/t0q70ij5CoMmZ1X4aDl7LEUUiQtRMsgvA+Z/htFm4w77nrIAR5jjs9Dk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763557787; c=relaxed/simple; bh=acl0bk3hOTBZPt5mvPuPSXJnLBTHafncgkjfVfpOeRQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RjsRF15NPic5A7lw66yjtb7Vovu00IRfQKQ9SbobMPtH33FD3hnj1FtFNg1sY+4DQ1Skin08NIjnVtD1YvHWTQ+hqI5PwHWv6h2qCYFAyVht+kykbHsfAPOlPJ+2WgD/28T1klQSn/4fFcxNdpjy6Zp68wQsERAb8lrn3dn93yw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=kU1XUdf8; arc=none smtp.client-ip=185.246.84.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="kU1XUdf8" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 8B63B1A1BE7; Wed, 19 Nov 2025 13:09:44 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 5EF5C60699; Wed, 19 Nov 2025 13:09:44 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 0056410371A4D; Wed, 19 Nov 2025 14:09:33 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1763557781; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=6ByjE2fDXvVGt+lqsSwFhGv2RTSfBXtxTluzyqLNTpc=; b=kU1XUdf8s2RAsVwDA2ek/rPXMMhQONyRg2a1IvO4LGjlvPdwi13Mv7MIRc+3a1UDym0x7q 5T/7OJCko+FA3Peet81z49JLbAAjnJSLki4fI1abemgPR1fdD9Cbmnvctzj2D7dw1sLVxR OBf4shc2KNmMVe3szWeZ9GSS/rMEvqaggAlMD/NtvK/qElnzbxMi2K8zt6HXzsYJq5yLFK +oJ1e+O1SCggskLwhwZ6199ig4iTiDBFn23TrLsa/KYeufoAUSCYRm0aNfdv0HezUP9+5j 0bTIgxDzLor4AaAYgJpyV0e4fkWnc9x0kFf0tFt/GWqsrCNwIliDqcGWN5nh1A== From: Luca Ceresoli Date: Wed, 19 Nov 2025 14:05:56 +0100 Subject: [PATCH 25/26] drm/bridge: imx8qxp-pixel-link: simplify freeing of the remote device_node Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251119-drm-bridge-alloc-getput-drm_of_find_bridge-v1-25-0db98a7fe474@bootlin.com> References: <20251119-drm-bridge-alloc-getput-drm_of_find_bridge-v1-0-0db98a7fe474@bootlin.com> In-Reply-To: <20251119-drm-bridge-alloc-getput-drm_of_find_bridge-v1-0-0db98a7fe474@bootlin.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jonathan Corbet , Alexey Brodkin , Phong LE , Liu Ying , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Adrien Grassein , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno , Anitha Chrisanthus , Edmund Dea , Inki Dae , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar Cc: Hui Pu , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Luca Ceresoli X-Mailer: b4 0.14.3 X-Last-TLS-Session-Version: TLSv1.3 The main loop in imx8qxp_pixel_link_find_next_bridge() requires calling of_node_put() in multiple places, complicating code flow. Simplify it by using a cleanup action and making the 'remote' variable scope local to the loop. Signed-off-by: Luca Ceresoli --- Cc: Liu Ying --- drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c b/drivers/gpu/= drm/bridge/imx/imx8qxp-pixel-link.c index 53016f0d53a0..2ecc3c1051e5 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c @@ -260,7 +260,7 @@ static struct drm_bridge * imx8qxp_pixel_link_find_next_bridge(struct imx8qxp_pixel_link *pl) { struct device_node *np =3D pl->dev->of_node; - struct device_node *port, *remote; + struct device_node *port; struct drm_bridge *selected_bridge =3D NULL; u32 port_id; bool found_port =3D false; @@ -286,7 +286,8 @@ imx8qxp_pixel_link_find_next_bridge(struct imx8qxp_pixe= l_link *pl) } =20 for (reg =3D 0; reg < PL_MAX_NEXT_BRIDGES; reg++) { - remote =3D of_graph_get_remote_node(np, port_id, reg); + struct device_node *remote __free(device_node) =3D + of_graph_get_remote_node(np, port_id, reg); if (!remote) continue; =20 @@ -294,15 +295,12 @@ imx8qxp_pixel_link_find_next_bridge(struct imx8qxp_pi= xel_link *pl) DRM_DEV_DEBUG(pl->dev, "port%u endpoint%u remote parent is not available\n", port_id, reg); - of_node_put(remote); continue; } =20 struct drm_bridge *next_bridge =3D of_drm_find_bridge(remote); - if (!next_bridge) { - of_node_put(remote); + if (!next_bridge) return ERR_PTR(-EPROBE_DEFER); - } =20 /* * Select the next bridge with companion PXL2DPI if @@ -310,8 +308,6 @@ imx8qxp_pixel_link_find_next_bridge(struct imx8qxp_pixe= l_link *pl) */ if (!selected_bridge || of_property_present(remote, "fsl,companion-pxl2d= pi")) selected_bridge =3D next_bridge; - - of_node_put(remote); } =20 pl->mst_addr =3D port_id - 1; --=20 2.51.1