From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.16]) (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 02874145B11; Wed, 13 May 2026 02:53:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778640821; cv=none; b=CNPvuKyQHI1nGbKT/5aQXFKdcICRN1g9HalmMTLEsZdL7baHyQzqS3NzzvdZpPPEkNtfSahSNVqOs/Uo9G+udZcWguvOUavtM8RrHOlybgcVrS6cogzRwMsDrtG/vQbOZbp96cjbSmbxPLGI/1CDBJAotmCJ4JsEr1OqYSTpDHo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778640821; c=relaxed/simple; bh=gktVRTQwx0kuPYssen49JKdkggZ0ZSpaMiBgWqEuarg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Lh7KV5SIb3k2APdILgEh+XHDpMYA65usUn1gNmfDqcwHXMeDfdX0gZ1qG92M9orpRLAzF8v8geGjjHoKnNa911xslbkI3VZfO77d4vpQwAb8v6ucarVSoz0ZXNRfQ7EGdWshGlt4Ko3Yu9jYSqAZT7JJ3B4aVFf/pcSfjngELls= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=HY7FEwZ9; arc=none smtp.client-ip=198.175.65.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="HY7FEwZ9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1778640819; x=1810176819; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=gktVRTQwx0kuPYssen49JKdkggZ0ZSpaMiBgWqEuarg=; b=HY7FEwZ9BSJZ3wyQ2pgWHa3W4I3+D1se5EH5yQnd/ztRou7dUNvvnM6h bzAsbK7i60MRjdM1G2+C81hwwsD1A4GHZ8h1IAdoqs6E9RABFQMDAOivO s9s0EHnK8xQfQE+2pW/9WL+W1py43UwQPd2prtjGPPnJTIy1WlSjA51Nu K9tGnM1zjb392YYlHKck5/0nObdkImsNtBalf8AIX9UPur+TFHVyIIsTa w0qf8wv3Qe0fMp1sc0Gd5E4vau4TXEjwKs/C0RRBGu/Css0x7nm1cguiv ZQ8EHPQt9uDxCX9Mv7MePgkz7Q4grqtAKSe3a/zKY6xFGuqq3NBV/nI+a g==; X-CSE-ConnectionGUID: ypzjrFzDT1euHWjinAvl+Q== X-CSE-MsgGUID: AnS1phyeR/2K1F7Qv94n3A== X-IronPort-AV: E=McAfee;i="6800,10657,11784"; a="79738483" X-IronPort-AV: E=Sophos;i="6.23,232,1770624000"; d="scan'208";a="79738483" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 May 2026 19:53:39 -0700 X-CSE-ConnectionGUID: ZtxaRZz2TcOFTzfqBh/Dpg== X-CSE-MsgGUID: YNhP+ZQbRe2VbetB28kmwA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,232,1770624000"; d="scan'208";a="235282242" Received: from lkp-server01.sh.intel.com (HELO dca79079c3eb) ([10.239.97.150]) by fmviesa008.fm.intel.com with ESMTP; 12 May 2026 19:53:36 -0700 Received: from kbuild by dca79079c3eb with local (Exim 4.98.2) (envelope-from ) id 1wMzj3-000000003G7-07sR; Wed, 13 May 2026 02:53:33 +0000 Date: Wed, 13 May 2026 10:52:57 +0800 From: kernel test robot To: Wentao Liang , linux@armlinux.org.uk, airlied@gmail.com, simona@ffwll.ch Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Wentao Liang , stable@vger.kernel.org Subject: Re: [PATCH] drm/armada: fix device_node reference leak in armada_lcd_bind() Message-ID: <202605131053.Tvq0phKC-lkp@intel.com> References: <20260509091821.963513-1-vulab@iscas.ac.cn> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260509091821.963513-1-vulab@iscas.ac.cn> Hi Wentao, kernel test robot noticed the following build errors: [auto build test ERROR on daeinki-drm-exynos/exynos-drm-next] [also build test ERROR on drm/drm-next drm-i915/for-linux-next drm-i915/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master rmk-arm/drm-armada-devel v7.1-rc3 next-20260508] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Wentao-Liang/drm-armada-fix-device_node-reference-leak-in-armada_lcd_bind/20260512-194755 base: https://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git exynos-drm-next patch link: https://lore.kernel.org/r/20260509091821.963513-1-vulab%40iscas.ac.cn patch subject: [PATCH] drm/armada: fix device_node reference leak in armada_lcd_bind() config: arm-randconfig-003-20260512 (https://download.01.org/0day-ci/archive/20260513/202605131053.Tvq0phKC-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260513/202605131053.Tvq0phKC-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202605131053.Tvq0phKC-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/armada/armada_crtc.c:1039:2: error: use of undeclared identifier 'ret'; did you mean 'res'? 1039 | ret = armada_drm_crtc_create(drm, dev, res, irq, variant, port); | ^~~ | res drivers/gpu/drm/armada/armada_crtc.c:1013:19: note: 'res' declared here 1013 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ^ >> drivers/gpu/drm/armada/armada_crtc.c:1039:6: error: incompatible integer to pointer conversion assigning to 'struct resource *' from 'int' [-Wint-conversion] 1039 | ret = armada_drm_crtc_create(drm, dev, res, irq, variant, port); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/armada/armada_crtc.c:1040:6: error: use of undeclared identifier 'ret'; did you mean 'res'? 1040 | if (ret) | ^~~ | res drivers/gpu/drm/armada/armada_crtc.c:1013:19: note: 'res' declared here 1013 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ^ drivers/gpu/drm/armada/armada_crtc.c:1042:9: error: use of undeclared identifier 'ret'; did you mean 'res'? 1042 | return ret; | ^~~ | res drivers/gpu/drm/armada/armada_crtc.c:1013:19: note: 'res' declared here 1013 | struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | ^ >> drivers/gpu/drm/armada/armada_crtc.c:1042:9: error: incompatible pointer to integer conversion returning 'struct resource *' from a function with result type 'int' [-Wint-conversion] 1042 | return ret; | ^~~ 5 errors generated. vim +1039 drivers/gpu/drm/armada/armada_crtc.c 1007 1008 static int 1009 armada_lcd_bind(struct device *dev, struct device *master, void *data) 1010 { 1011 struct platform_device *pdev = to_platform_device(dev); 1012 struct drm_device *drm = data; 1013 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1014 int irq = platform_get_irq(pdev, 0); 1015 const struct armada_variant *variant; 1016 struct device_node *port = NULL; 1017 struct device_node *np, *parent = dev->of_node; 1018 1019 if (irq < 0) 1020 return irq; 1021 1022 1023 variant = device_get_match_data(dev); 1024 if (!variant) 1025 return -ENXIO; 1026 1027 if (parent) { 1028 np = of_get_child_by_name(parent, "ports"); 1029 if (np) 1030 parent = np; 1031 port = of_get_child_by_name(parent, "port"); 1032 of_node_put(np); 1033 if (!port) { 1034 dev_err(dev, "no port node found in %pOF\n", parent); 1035 return -ENXIO; 1036 } 1037 } 1038 > 1039 ret = armada_drm_crtc_create(drm, dev, res, irq, variant, port); 1040 if (ret) 1041 of_node_put(port); > 1042 return ret; 1043 } 1044 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki