From patchwork Tue Sep 3 01:44:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ma Ke X-Patchwork-Id: 826280 Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EB37B1A4E6B; Tue, 3 Sep 2024 01:45:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725327920; cv=none; b=ktP+tKntbP7Bhvx/CTffmaj73+SvTNiqOQGlLBSHYhd0NMfE30Nz4FlVrSYwSjrhn2dyZLR/pfjzsPRYs2HSk23Et2jJ8DZE5oYeZaqE2xBpFzRZpaapgNSE/j2ivOOa/8Tb6S5yTSH5t2eRtaSd7EwQVIMYcr1/WMQZ8wPKe3Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725327920; c=relaxed/simple; bh=wsAv2DCs81Krot2H6B+GkuNI1BslfDtsdnmozEw5rcU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=nBs/wuoov/drxvbvyie9doFHzoXkOKqftNnhmALy9jVK++7VoBtXAM+rfXQnwsHX4/9MIJZg1USBzVW6J8xtQ7IHuz5AWA+uZ4Ol+qdqVDUG/24yCze1cNrdwqcCCPsnJHehNLG651nYTfABifUT2UEBK2jkiV0HMza8bhxZSJY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from icess-ProLiant-DL380-Gen10.. (unknown [183.174.60.14]) by APP-01 (Coremail) with SMTP id qwCowAC3aKgaatZmIuKyAA--.34549S2; Tue, 03 Sep 2024 09:45:05 +0800 (CST) From: Ma Ke To: nbd@nbd.name, lorenzo@kernel.org, ryder.lee@mediatek.com, shayne.chen@mediatek.com, sean.wang@mediatek.com, kvalo@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, mingyen.hsieh@mediatek.com, deren.wu@mediatek.com, make24@iscas.ac.cn, ruanjinjie@huawei.com, greearb@candelatech.com, akpm@linux-foundation.org Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, stable@vger.kernel.org Subject: [PATCH RESEND] wifi: mt76: mt7921: Check devm_kasprintf() returned value Date: Tue, 3 Sep 2024 09:44:55 +0800 Message-Id: <20240903014455.4144536-1-make24@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: qwCowAC3aKgaatZmIuKyAA--.34549S2 X-Coremail-Antispam: 1UD129KBjvdXoWrKFW7ZFW5Ww13Zw4xXFWxCrg_yoWDAFbEgr 409rn7XryrGFn8Kr42yry3CrW2kaykZr18XFsxtrWrJrWxGrWUur93Zrn8J392k397uryU urn0kFy8uws8ZjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbh8FF20E14v26ryj6rWUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26F4j6r4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr 1j6F4UJwAac4AC62xK8xCEY4vEwIxC4wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40E FcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Jr 0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8v x2IErcIFxwACI402YVCY1x02628vn2kIc2xKxwCY1x0262kKe7AKxVW8ZVWrXwCF04k20x vY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I 3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIx AIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1UMIIF 0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87 Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjTRMzuWDUUUU X-CM-SenderInfo: ppdnvj2u6l2u1dvotugofq/ devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fix this lack and check the returned value. Found by code review. Cc: stable@vger.kernel.org Fixes: 6ae39b7c7ed4 ("wifi: mt76: mt7921: Support temp sensor") Signed-off-by: Ma Ke --- drivers/net/wireless/mediatek/mt76/mt7921/init.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index ef0c721d26e3..5ab395d9d93e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -52,6 +52,8 @@ static int mt7921_thermal_init(struct mt792x_phy *phy) name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7921_%s", wiphy_name(wiphy)); + if (!name) + return -ENOMEM; hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy, mt7921_hwmon_groups);