From nobody Mon May 25 05:56:11 2026 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.3]) (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 1A73E1C5D72; Mon, 18 May 2026 09:46:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.3 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779097573; cv=none; b=O8S7+EWL1tWpdObBlxDsC5HAdf5vNQa1iXn9GVwYDYwS0HeriQTJCLTR5PdYb5xcAlhWYwvEzTIKYFYM4P854NY8/pC2yGcRP95g/tKS2ZdmIWZ2kq3sj2ZTvPZrDumoHxiUMsD07QdXv1GoH2YC4H/Xvp+5BS6hh0trOFRK5jA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779097573; c=relaxed/simple; bh=H/glQs9nUrdf/JB9IH8cZDjZT2MMIBPBpwUT5XuF3LE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=dS5SIwRvdind8kq+1LVZKSkPA5WLMv9z2gCxDCqlUry5shgtse4LAweD3kka5XFANirDtEDA5CDWB9alt9WvPFOmvfLfuRGFwI+jXjljY5aG5H8gIoSKI7LCUwgrZfwUpSl2RJghwEEkIlpishyoHv/VcbkXPJKhUGGSEIIM8Sk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=bNTi4op6; arc=none smtp.client-ip=220.197.31.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="bNTi4op6" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=pa Wfd0J41Qw2Gu0sg/c21JfGyqYleKbjw8wcayIPOl4=; b=bNTi4op69ZehPHteoO ebj4bYb21FvjK+cv7EkaKhBVENGHy9vBVD7nUlDUeSjGHUhkhedzntzwFnW7Q8eU C8cxDZeriw+/vvPDwqwFFBqMaJFprzA0zGZ0EU/ZdM8MmZ4/ilpYHPtM3yUv9CNu RRHzWem/1eNcJjOL06mMwNkso= Received: from zengchi (unknown []) by gzsmtp2 (Coremail) with SMTP id PSgvCgCnew683wpqmVyCFA--.31878S2; Mon, 18 May 2026 17:45:33 +0800 (CST) From: Zeng Chi To: zhaotianrui@loongson.cn, maobibo@loongson.cn, chenhuacai@kernel.org, kernel@xen0n.name Cc: kvm@vger.kernel.org, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, zengchi@kylinos.cn Subject: [PATCH] LoongArch: KVM: Add missing slots_lock for EIOINTC virtual extension device registration Date: Mon, 18 May 2026 17:45:21 +0800 Message-Id: <20260518094521.138692-1-zeng_chi911@163.com> X-Mailer: git-send-email 2.25.1 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-CM-TRANSID: PSgvCgCnew683wpqmVyCFA--.31878S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrtFy7Cw43tr18uw4kCw1UGFg_yoWDWrX_Cr yS93s3GrWrJa45W3Wqyw1Fkr109a95KFWrAryfuF1kCwnxZrsxZw47Wry5Zwn29rWxurs8 XrW0y34akF129jkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU8hqXPUUUUU== X-CM-SenderInfo: 52hqws5fklmiqr6rljoofrz/xtbCwB1EAGoK370HjwAA3T Content-Type: text/plain; charset="utf-8" From: Zeng Chi The second kvm_io_bus_register_dev() call for device_vext was missing kvm->slots_lock protection. Add it to match the first registration. Signed-off-by: Zeng Chi --- arch/loongarch/kvm/intc/eiointc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/loongarch/kvm/intc/eiointc.c b/arch/loongarch/kvm/intc/ei= ointc.c index 2ab7fafa86d5..ce64ffb706df 100644 --- a/arch/loongarch/kvm/intc/eiointc.c +++ b/arch/loongarch/kvm/intc/eiointc.c @@ -645,8 +645,10 @@ static int kvm_eiointc_create(struct kvm_device *dev, = u32 type) =20 device =3D &s->device_vext; kvm_iodevice_init(device, &kvm_eiointc_virt_ops); + mutex_lock(&kvm->slots_lock); ret =3D kvm_io_bus_register_dev(kvm, KVM_IOCSR_BUS, EIOINTC_VIRT_BASE, EIOINTC_VIRT_SIZE, device); + mutex_unlock(&kvm->slots_lock); if (ret < 0) { kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &s->device); kfree(s); --=20 2.25.1