From nobody Fri Oct 3 00:01:46 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 33D35253355 for ; Tue, 9 Sep 2025 08:19:54 +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=1757405999; cv=none; b=GhSTxih0HOGM32IxGX9voBMWkaJXBPVt5sEr964hon8MVUdNdA85kzLE7rvxBgP8ROcp3bdzMQ6nd1QCCB3V3o6F6txROYBMsg6gUUV05eobaJhysmf4aW0GjZwY/B/KBZiaVyy3mO0+Tquh99LSRqDI4XwQ9oakMQ2NbnlYk8k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757405999; c=relaxed/simple; bh=mM/ZjWAVbUUkql8H1oFghgabuM9jKXe/SwcEiQbRuBU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=IGcFpFJcsMnnMjGtHCCZ6TGK6HpmNGBMmbEz7eiVATU6zYvIHJxaIojm7iP2NAqKX1cmQufL53Oa3VnIVi0EnuwsA8+viy4WWat0o4OOG6wf6VnWhYAowbqAMKFqfXnDHs20c+WFZC/eyxkDlvFbWn2jvj4htsyLSOuJNAKgJL8= 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: c039b8f08d5511f0b29709d653e92f7d-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_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:b1e419d6-c164-4e88-81de-838cb3fc5ba1,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:b1e419d6-c164-4e88-81de-838cb3fc5ba1,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:5b9a6df3204e70fc12a8c2585deda649,BulkI D:2509091619500BZNL3X6,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: c039b8f08d5511f0b29709d653e92f7d-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 1619689536; Tue, 09 Sep 2025 16:19:48 +0800 From: cuitao To: chenhuacai@kernel.org, loongarch@lists.linux.dev Cc: kernel@xen0n.name, linux-kernel@vger.kernel.org, cuitao Subject: [PATCH v3] LoongArch: Add a check for the return value when creating the kobj Date: Tue, 9 Sep 2025 16:19:40 +0800 Message-ID: <20250909081940.1851044-1-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 --- v3: Removed the unnecessary debug prints. https://lore.kernel.org/all/CAAhV-H5CjH8i81dGNxaVrzdVUiTwqMUYeuBifQ0wSW_Mw9= wSTw@mail.gmail.com/ --- arch/loongarch/kernel/env.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/loongarch/kernel/env.c b/arch/loongarch/kernel/env.c index c0a5dc9aeae2..e9a7ea3bc5c8 100644 --- a/arch/loongarch/kernel/env.c +++ b/arch/loongarch/kernel/env.c @@ -109,6 +109,9 @@ static int __init boardinfo_init(void) struct kobject *loongson_kobj; =20 loongson_kobj =3D kobject_create_and_add("loongson", firmware_kobj); + if (!loongson_kobj) { + return -ENOMEM; + } =20 return sysfs_create_file(loongson_kobj, &boardinfo_attr.attr); } --=20 2.48.1