From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 3F9082F617C; Sat, 12 Sep 2026 18:44:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789238655; cv=none; b=XEk7JMcTbEcdNw8otAyCTp78WGb+w2aTNfqSnz53yNaC7DFhCBYtbsqoBCH91S3Qg0XfsqlciFrpJzQWZsvFkCbxwIFUVFUzbBv7M/ovk/Eut5IKHoYEqtl5GDsMlUBxaysiioBMUNbdER8eHqExmTD6OwcbgzJSsCabEYF5RGA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789238655; c=relaxed/simple; bh=eS5Yvugo2ROW1JLai33At5SmaE0dI4H1Me+20GN/6xk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hYG70NasPVi5uTYWXJuqqzuJLuI6K1YdrYRvYScSHbuE9xDaHbbGH+QSPVzQVFbxv589T/p57yrz+oafdj3whU5wLoYEBT0i3sJepuL/Z4l0fmgOxrWxmJTbevkJ7yGfmC4tzlpcFYQvAr8bG8CaGsxPt0MipJpIwH43VW5czpc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=bDhay7sP; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="bDhay7sP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E25541F00893; Sat, 12 Sep 2026 18:44:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789238654; bh=l9eJIcj8dtTzWf6wUxcKN5vwyI08iJcE46v7E6tFqZk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=bDhay7sPp3Y0EnAKWbn9Vlc3GKJQH7L+RwJxNE1RFzxh8Eivk+h3A8UksjpX0a3HO dfTmU6Cbg5qGnKgKyR6l7HVpN3Jila/5MYUELyvkrlfT9Rn/K//haMSNGJtEC47vX+ wRYorLlASx6bdeD7hQDq/ZhvD45U3ojl9GlbdjzY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Leon Romanovsky , Sasha Levin Subject: [PATCH 5.15 507/935] RDMA/hfi1: Preserve unit 0 on allocation failure Date: Sat, 12 Sep 2026 08:58:57 +0200 Message-ID: <20260912065538.445008173@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065526.833703348@linuxfoundation.org> References: <20260912065526.833703348@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Leon Romanovsky [ Upstream commit 2e3809ad8911f5d5581b3f046bd628417bface76 ] hfi1_free_devdata() assumes that the device was inserted into the unit table and unconditionally erases dd->unit. If xa_alloc_irq() fails, the zero-initialized unit remains zero, so full cleanup can remove an unrelated device from index 0. Release only the rdmavt allocation and return immediately while the unit table has not acquired the device. Fixes: 03b92789e5cf ("hfi1: Convert hfi1_unit_table to XArray") Link: https://patch.msgid.link/20260708-clean-init-one-hfi1-v1-2-b9e9641268a5@nvidia.com Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/hfi1/init.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index 7facc04cc36c3..02e2efd180a10 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -1227,8 +1227,9 @@ static struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev, GFP_KERNEL); if (ret < 0) { dev_err(&pdev->dev, - "Could not allocate unit ID: error %d\n", -ret); - goto bail; + "Could not allocate unit ID: error %pe\n", ERR_PTR(ret)); + rvt_dealloc_device(&dd->verbs_dev.rdi); + return ERR_PTR(ret); } rvt_set_ibdev_name(&dd->verbs_dev.rdi, "%s_%d", class_name(), dd->unit); /* -- 2.53.0