From nobody Fri Sep 25 14:31:51 2026 Received: from mail-m155101.qiye.163.com (mail-m155101.qiye.163.com [101.71.155.101]) (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 B97EB2D9EDB; Fri, 11 Sep 2026 06:09:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=101.71.155.101 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789106963; cv=none; b=LuO+jAd6dt6tLbLvyw6XRDofkvvdL3QoAsO9/x+zMlJQYfUuZty6g2r/r+iNfLBolIrwqWeRqBCUJ4T3R/dnMLKVuAtn31zq/tGxgpO/RwiFYwtNHKGn6GHiQaVfPzvKvY0ure8ADb/QN09HUzX8XPDwoE0QmYUmZVAddR1Uf6o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789106963; c=relaxed/simple; bh=hMAOndQstB9jaeB87Kst5wgSrHGWGAzMoe7vgDnmoW8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=huiXINfQBGPte66dyvyiT98ZgEwO8obdXh715EKoQSorGdtXA3a3c8xyyFZfSXFzHc2kYDFqXealuNvJcGNUre4S7GIVmgGXgvdc1FpKfUDk9yP4Cwgl+PYHY4awvBVP7ubnYnEI/utJev0MMCg6X9aoqUk/fcAaUO6DCxxEe4Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn; spf=pass smtp.mailfrom=seu.edu.cn; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b=LlRFgjFu; arc=none smtp.client-ip=101.71.155.101 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b="LlRFgjFu" Received: from seu.edu.cn (unknown [222.191.246.242]) by smtp.qiye.163.com (Hmail) with ESMTP id 4d62c4fab; Fri, 11 Sep 2026 14:09:11 +0800 (GMT+08:00) From: Slavin Liu To: tatyana.e.nikolova@intel.com, jgg@ziepe.ca, leon@kernel.org Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, bolin.liu@seu.edu.cn Subject: [PATCH RFC] RDMA/irdma: check vport device allocation Date: Fri, 11 Sep 2026 14:09:09 +0800 Message-Id: <20260911060909.94219-1-bolin.liu@seu.edu.cn> X-Mailer: git-send-email 2.34.1 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 X-HM-Tid: 0aa08f1592c203a1kunmeb1546831c7326 X-HM-MType: 10 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVlDHhpMVkxMQk9KTxpKT0weGlYeHw 5VEwETFhoSFyQUDg9ZV1kYEgtZQVlJSUlVSkJKVUlPTVVJT0lZV1kWGg8SFR0UWUFZT0tIVUpLSU hOQ0NVSktLVUtZBg++ DKIM-Signature: a=rsa-sha256; b=LlRFgjFuqIbeEO+tT7k8XJZO9eEy4Na1/KdlsMPxTme9jCwT4e74FD1kTWT4ZfPKVrFpOuXjFTdhPVOr+nQfGqQdDYDglaiNezm/ouGPPgvOXprKq0MMuEaSliQsP+4oISFEGRB0KZcxmeXLkslvlFzLBQ5yngT1I0I8VNo/ijo=; c=relaxed/relaxed; s=default; d=seu.edu.cn; v=1; bh=FzoTm1DeV8BT7ix80HmrQ+s7jx4kGWKwr2kYUyysO7M=; h=date:mime-version:subject:message-id:from; Content-Type: text/plain; charset="utf-8" An existing RDMA function does not guarantee allocation of the new vport device. Return -ENOMEM before initializing a NULL iwdev. Detected by static analysis and reviewed with AI-assisted source auditing. Fixes: 2ad49ae7330b ("RDMA/irdma: Introduce GEN3 vPort driver support") Assisted-by: LLM Signed-off-by: Slavin Liu --- drivers/infiniband/hw/irdma/main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/infiniband/hw/irdma/main.c b/drivers/infiniband/hw/ird= ma/main.c index 95957d52883d..106915b51e7c 100644 --- a/drivers/infiniband/hw/irdma/main.c +++ b/drivers/infiniband/hw/irdma/main.c @@ -80,6 +80,8 @@ static int ig3rdma_vport_probe(struct auxiliary_device *a= ux_dev, return -ENOMEM; } iwdev =3D ib_alloc_device(irdma_device, ibdev); + if (!iwdev) + return -ENOMEM; /* Fill iwdev info */ iwdev->is_vport =3D true; iwdev->rf =3D rf;