From nobody Fri Oct 3 00:00:52 2025 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (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 A4C10302CC0 for ; Tue, 9 Sep 2025 07:20:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757402403; cv=none; b=pMFFbWHiW7thA8dYkuiFzBr9XvyUkFyq2XBBz6Gwb6kgjfYGewHGxfv2Ru8EPx48sC5Y/oYVW9LHarHd/A5NkVRLK9PzAdk4X9AUrMxzD/3DZihqiXXtebql9TQ/bNfhnKyjdgns3pDg6Wwci7M3slpi45tvuWRsgwgA89t5kMU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757402403; c=relaxed/simple; bh=S/5Rvz7e8FRVyPmtxt5eOlYi3u9O3wh6EDo/i6igZ8k=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=THkohRivMYlI79uqoC74lr9jj2sPVOFZJFHthuZ5uL2wx1nyhJ8XdccOM0CIt+sMpQ5Js1QHUElS19sP0yAJ2EJfKfhg3uDIcjfjcBJM09nAtjUmwGFNNHw4SUyjXfD+5SBGG4Ul8KjqwrSzmtcp2AtXfgHIIVo13MD7kmggDTY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 6295c25a8d4d11f0b29709d653e92f7d-20250909 X-CTIC-Tags: HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NAME, HR_CC_NO_NAME, HR_CTE_8B HR_CTT_MISS, HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_NAME HR_SJ_DIGIT_LEN, HR_SJ_LANG, HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM HR_SJ_PHRASE, HR_SJ_PHRASE_LEN, HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT HR_TO_NO_NAME, IP_TRUSTED, SRC_TRUSTED, DN_TRUSTED, SA_UNTRUSTED SA_LOWREP, SA_EXISTED, SN_UNTRUSTED, SN_LOWREP, SN_EXISTED SPF_NOPASS, DKIM_NOPASS, DMARC_NOPASS, CIE_BAD, CIE_GOOD CIE_GOOD_SPF, GTI_FG_BS, GTI_RG_COMM, GTI_C_CI, GTI_FG_IT GTI_RG_INFO, GTI_C_BU, AMN_T1, AMN_GOOD, AMN_C_TI AMN_C_BU, ABX_MISS_RDNS X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.45,REQID:407287ae-b91a-4e22-a617-5a1fc46c2fef,IP:15, URL:0,TC:0,Content:-5,EDM:25,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,AC TION:release,TS:20 X-CID-INFO: VERSION:1.1.45,REQID:407287ae-b91a-4e22-a617-5a1fc46c2fef,IP:15,UR L:0,TC:0,Content:-5,EDM:25,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:20 X-CID-META: VersionHash:6493067,CLOUDID:6a574abd7be5b7c4ad38620fadfd79b1,BulkI D:250909151958BHQ3YCED,BulkQuantity:0,Recheck:0,SF:17|19|24|38|44|66|78|10 2,TC:nil,Content:0|50,EDM:5,IP:-2,URL:99|1,File:nil,RT:nil,Bulk:nil,QS:nil ,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD,TF_CID_SPAM_FSI, TF_CID_SPAM_ULS X-UUID: 6295c25a8d4d11f0b29709d653e92f7d-20250909 X-User: cuitao@kylinos.cn Received: from ctao-ubuntu.. [(39.156.73.13)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 1595949212; Tue, 09 Sep 2025 15:19:55 +0800 From: cuitao To: chenhuacai@kernel.org, loongarch@lists.linux.dev Cc: kernel@xen0n.name, linux-kernel@vger.kernel.org, cuitao Subject: [PATCH v2] LoongArch: Add a check for the return value when creating the kobj Date: Tue, 9 Sep 2025 15:19:42 +0800 Message-ID: <20250909071942.1846204-1-cuitao@kylinos.cn> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a check for the return value of kobject_create_and_add to ensure that the kobj allocation succeeds. Signed-off-by: cuitao --- v2: Removed the unnecessary modifications. https://lore.kernel.org/all/CAAhV-H7ECnVeOgf93SEXLHLc4wvhQMjQXDbGKCR-KXKWf8= Vgtg@mail.gmail.com/ --- arch/loongarch/kernel/env.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/loongarch/kernel/env.c b/arch/loongarch/kernel/env.c index c0a5dc9aeae2..f4ae894f4219 100644 --- a/arch/loongarch/kernel/env.c +++ b/arch/loongarch/kernel/env.c @@ -109,6 +109,10 @@ static int __init boardinfo_init(void) struct kobject *loongson_kobj; =20 loongson_kobj =3D kobject_create_and_add("loongson", firmware_kobj); + if (!loongson_kobj) { + pr_warn("loongson: Firmware registration failed.\n"); + return -ENOMEM; + } =20 return sysfs_create_file(loongson_kobj, &boardinfo_attr.attr); } --=20 2.48.1