From nobody Mon Feb 9 00:39:00 2026 Received: from mail-pj1-f41.google.com (mail-pj1-f41.google.com [209.85.216.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E9F691A9F97 for ; Sat, 31 Jan 2026 12:48:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769863722; cv=none; b=nlQ2VfOnIZ1hL6j3UKO7wIE/mtfVXsmtBxGjNRu6FZdwTIwO01Vaqz1O6CRKHBfcdn0tWUZtFl5EcEWQbLztEwYRvLCFHifjx/BNDUnNbaEJP084z5jSs/fQwCcRFFo8ybO2CJGB8P6jGinfw//l/aBU82HJnIIUaNRpAXT2mAA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769863722; c=relaxed/simple; bh=qWjHqlgo4XNYoiM3y62z5BQIp1iGOLohTtFGm8bt+wc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=cruWy6K72iospOa8ysbACeDWS1VKrVkFdgKd+gzR3NVI7e8azLg/R92APHOjaL1vzoqq9k7QzJHUJf0FB1iqIdbWT3SeEWaplkeWyHVj8esPok7TAYaZKS5is6fHHxNN3vGoNsG9q2CLqpk0tkYkM+NWNGCZdKpov65QbCsRhMs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=SfMjave+; arc=none smtp.client-ip=209.85.216.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SfMjave+" Received: by mail-pj1-f41.google.com with SMTP id 98e67ed59e1d1-35456fcb79cso62724a91.3 for ; Sat, 31 Jan 2026 04:48:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769863720; x=1770468520; darn=vger.kernel.org; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:from:to:cc:subject:date:message-id:reply-to; bh=Yg8/gpgU9m1/xq48pahp4plD2I6M9C2S++w+H4nQDDw=; b=SfMjave+2+599UW84227RvcPM3CyZuTV6CyVtMLy93hfBneljVlEYnHNEh+/suZj7+ ySReFWIHtq7YlwnLKLlcmmynWDo3QLa/XdwI41hqamFdlG+FiCV2OFf9ffjYRoyN/TFp bs1PXcBaTCuOiMz5Jbz3bFjriOspl0uliYOTgMSUuu2sIGABPw936dkEiWlnmbsC8Cf0 z9UXc9EkF/T/70VsvAt39ppYj+SSv8tmI5AZum0MJWpvLmcANoHy2wuFh09MGjD83mR2 oalcszoqDGofDlxalx2nEtlDmW3Ut42FcfkdBFunTudN8ia27zYReoyD5j7bDcj02Gzj W7Yg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769863720; x=1770468520; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Yg8/gpgU9m1/xq48pahp4plD2I6M9C2S++w+H4nQDDw=; b=UlZjQjRNTl6DcSlNCrGtvzli414LlshAwTJhH9b0QofCRmHz2NeYwGWf0A/1HB6ru2 +Y9WDWx1Qiy/paAuD/OSKB1QgLqhek2Ic07X3dC01mN4LhBzIt/KylggU5xiigkt56A7 mKe/WwjsPE9m+2NNeekJMtd0sy+5Jvv37vkPzxfoHkSq/mT0FcoJxJPtbEdskpLUbCe/ bYbJcflYQjJAnzDXAQg/0gDCNR/ifhjxIyZk5YutE4pe55KPj4KLjut+L5fXaU5BwWPu rvf061GlqdXa1cCeLE3FYgyIoaG41tpelinnOY0Ngwq3+1ljMEZbd5gOHQRrWbNFUyl8 JLVA== X-Forwarded-Encrypted: i=1; AJvYcCUUqyryTcaZTnukrimTb+p/lasCbyrwljHZBdCRLjN8N5F/hS80avfmMFofA0rgEBPCUpQRAKvY5nggHFM=@vger.kernel.org X-Gm-Message-State: AOJu0YwmyhPCHIDy9QFlYPrUYfYETRhwmpT/2oHhnH8FBc5buQnyy1E0 lLBnMkyBsQTfiW2S2rejVAmMJI0rOmeRr5GH1DvzCv+wxTvIT5wFInvz X-Gm-Gg: AZuq6aLE1XS+pneiO/pbRAq5G5Cp971Jx7UHXco04G3LdKYN06VaNcO6BTNnUM87R/u yjcMFa44aU+uRSDGD5jIZPizWwc2+C/EOMVb/tccYb11eM76tbGkwk8BJA3f+oVXoFQ9CkGoX+C BWcBDqCFf7FRyWsU886maonn5nlWNjn55SnyISYdRWihOpZK54PuO1b3P/n+bd788eKYnHi4UlZ rXg732XWX/NFv30/bAUGeGzpHgtGI7TXNC0qVObfqY21hnuuxaPcJWohkRbGlBZ05zUvmAjVkua 9gmNggrSyDBIGTFlg1S2D26Qq3gMRBfdGNfFrtFuSAdJkIK5MXfmCi4S9IJHA2x1AxerjSUlMhj QA8ozBvwO3NZi18vEu+xrOnY7B7ifcqOYrP+pxj0+qp5X8ez+3rOrrX9xlzxTDEE1QRm988o8xH nCluR6V5s= X-Received: by 2002:a17:90b:1348:b0:352:d1a4:19cb with SMTP id 98e67ed59e1d1-3543b323becmr5352601a91.11.1769863720158; Sat, 31 Jan 2026 04:48:40 -0800 (PST) Received: from junjungu-PC.localdomain ([2408:820c:9008:ba52::3a87]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-353f6103e9fsm13107396a91.2.2026.01.31.04.48.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 31 Jan 2026 04:48:39 -0800 (PST) From: Felix Gu Date: Sat, 31 Jan 2026 20:48:33 +0800 Subject: [PATCH] video: of_display_timing: Fix device node reference leak in of_get_display_timings() 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: <20260131-of_display_timging-v1-1-f4f8d9f87c3c@gmail.com> X-B4-Tracking: v=1; b=H4sIACD6fWkC/x3MTQqAIBBA4avErBPUor+rRIjlaANloRFFdPek5 bd474GIgTBClz0Q8KRIm08QeQbTrL1DRiYZJJcVF4Vgm1WG4r7oWx20OvKOoW3qUkvDy3aEFO4 BLV3/tB/e9wNMm2F6ZAAAAA== X-Change-ID: 20260131-of_display_timging-ef874a2d049b To: Helge Deller , Thierry Reding , Laurent Pinchart , Philipp Zabel , Stephen Warren , Steffen Trumtrar Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Felix Gu X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1769863715; l=1640; i=ustc.gu@gmail.com; h=from:subject:message-id; bh=qWjHqlgo4XNYoiM3y62z5BQIp1iGOLohTtFGm8bt+wc=; b=XM0629h8r42xPVOhCm2SBDvW3BUSZvjh6PxB+Kv0KYTj9yiq/letlXyOHcVyaxOXrdVMsqn6j xWztwcLXPhaBifQPNdGT7mFMXXzUpP1ni9wqvSz0sfxt8L1iI4TXaXh X-Developer-Key: i=ustc.gu@gmail.com; a=ed25519; pk=fjUXwmjchVN7Ja6KGP55IXOzFeCl9edaHoQIEUA+/hw= Use for_each_child_of_node_scoped instead of for_each_child_of_node to ensure automatic of_node_put on early exit paths, preventing device node reference leak. Fixes: cc3f414cf2e4 ("video: add of helper for display timings/videomode") Signed-off-by: Felix Gu --- drivers/video/of_display_timing.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_t= iming.c index 1940c9505dd3..a6ec392253c3 100644 --- a/drivers/video/of_display_timing.c +++ b/drivers/video/of_display_timing.c @@ -195,7 +195,7 @@ struct display_timings *of_get_display_timings(const st= ruct device_node *np) disp->num_timings =3D 0; disp->native_mode =3D 0; =20 - for_each_child_of_node(timings_np, entry) { + for_each_child_of_node_scoped(timings_np, child) { struct display_timing *dt; int r; =20 @@ -206,7 +206,7 @@ struct display_timings *of_get_display_timings(const st= ruct device_node *np) goto timingfail; } =20 - r =3D of_parse_display_timing(entry, dt); + r =3D of_parse_display_timing(child, dt); if (r) { /* * to not encourage wrong devicetrees, fail in case of @@ -218,7 +218,7 @@ struct display_timings *of_get_display_timings(const st= ruct device_node *np) goto timingfail; } =20 - if (native_mode =3D=3D entry) + if (native_mode =3D=3D child) disp->native_mode =3D disp->num_timings; =20 disp->timings[disp->num_timings] =3D dt; --- base-commit: 33a647c659ffa5bdb94abc345c8c86768ff96215 change-id: 20260131-of_display_timging-ef874a2d049b Best regards, --=20 Felix Gu