From patchwork Mon Nov 27 06:34:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunwu Chan X-Patchwork-Id: 13469188 X-Patchwork-Delegate: ilpo.jarvinen@linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16F571A3; Sun, 26 Nov 2023 22:36:01 -0800 (PST) X-UUID: f5e64f129679413891f4ef926f41a2d5-20231127 X-CID-O-RULE: Release_Ham X-CID-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.33,REQID:87602af9-271c-4a35-b31d-9ad5ad5bf2f6,IP:15, URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,ACT ION:release,TS:-5 X-CID-INFO: VERSION:1.1.33,REQID:87602af9-271c-4a35-b31d-9ad5ad5bf2f6,IP:15,UR L:0,TC:0,Content:-5,EDM:0,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-5 X-CID-META: VersionHash:364b77b,CLOUDID:f47afcfc-4a48-46e2-b946-12f04f20af8c,B ulkID:231127143550DH1I147D,BulkQuantity:0,Recheck:0,SF:44|66|38|24|17|19|1 02,TC:nil,Content:0,EDM:-3,IP:-2,URL:11|1,File: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 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_FSD,TF_CID_SPAM_FSI,TF_CID_SPAM_ULN,TF_CID_SPAM_SNR, TF_CID_SPAM_FAS X-UUID: f5e64f129679413891f4ef926f41a2d5-20231127 X-User: chentao@kylinos.cn Received: from vt.. [(116.128.244.169)] by mailgw (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2006990806; Mon, 27 Nov 2023 14:35:47 +0800 From: Kunwu Chan To: hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, vadimp@nvidia.com, jiri@resnulli.us, shravankr@nvidia.com Cc: kunwu.chan@hotmail.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, Kunwu Chan Subject: [PATCH] platform/mellanox: Add a null pointer check in mlxbf_pmc_create_groups Date: Mon, 27 Nov 2023 14:34:33 +0800 Message-Id: <20231127063433.1549064-1-chentao@kylinos.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: 1a218d312e65 ("platform/mellanox: mlxbf-pmc: Add Mellanox BlueField PMC driver") Signed-off-by: Kunwu Chan Reviewed-by: Hans de Goede --- drivers/platform/mellanox/mlxbf-pmc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/platform/mellanox/mlxbf-pmc.c b/drivers/platform/mellanox/mlxbf-pmc.c index 0b427fc24a96..59bbe5e13f6b 100644 --- a/drivers/platform/mellanox/mlxbf-pmc.c +++ b/drivers/platform/mellanox/mlxbf-pmc.c @@ -1882,6 +1882,8 @@ static int mlxbf_pmc_create_groups(struct device *dev, int blk_num) pmc->block[blk_num].block_attr_grp.attrs = pmc->block[blk_num].block_attr; pmc->block[blk_num].block_attr_grp.name = devm_kasprintf( dev, GFP_KERNEL, pmc->block_name[blk_num]); + if (!pmc->block[blk_num].block_attr_grp.name) + return -ENOMEM; pmc->groups[pmc->group_num] = &pmc->block[blk_num].block_attr_grp; pmc->group_num++;