From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D0BF71FB9 for ; Fri, 3 Feb 2023 10:26:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34DDDC433D2; Fri, 3 Feb 2023 10:26:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1675420006; bh=S7wEEfAUdIx5jrUJ1SbKokddBYPBiPwSPs3PZ6941d4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xvC4ZyLtUYds382V/exxPQSIqFZLlCuLf15FGUieCpCxpcvuOZp/kA3EhKrMWthcF QgnZO9Lwb9aUPzod2BLq7Evy/qNrgmU0hw07t/kRVRWf5gLBbl5gBGmqHeMzMf8F2k WKVpRMP1qXXiZRgxXD1gtuHPkduyVeGACOxQtYdI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chen Zhongjin , Sasha Levin Subject: [PATCH 5.4 049/134] driver core: Fix test_async_probe_init saves device in wrong array Date: Fri, 3 Feb 2023 11:12:34 +0100 Message-Id: <20230203101026.075163074@linuxfoundation.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230203101023.832083974@linuxfoundation.org> References: <20230203101023.832083974@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Chen Zhongjin [ Upstream commit 9be182da0a7526f1b9a3777a336f83baa2e64d23 ] In test_async_probe_init, second set of asynchronous devices are saved in sync_dev[sync_id], which should be async_dev[async_id]. This makes these devices not unregistered when exit. > modprobe test_async_driver_probe && \ > modprobe -r test_async_driver_probe && \ > modprobe test_async_driver_probe ... > sysfs: cannot create duplicate filename '/devices/platform/test_async_driver.4' > kobject_add_internal failed for test_async_driver.4 with -EEXIST, don't try to register things with the same name in the same directory. Fixes: 57ea974fb871 ("driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity") Signed-off-by: Chen Zhongjin Link: https://lore.kernel.org/r/20221125063541.241328-1-chenzhongjin@huawei.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/base/test/test_async_driver_probe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/test/test_async_driver_probe.c b/drivers/base/test/test_async_driver_probe.c index 3bb7beb127a9..c157a912d673 100644 --- a/drivers/base/test/test_async_driver_probe.c +++ b/drivers/base/test/test_async_driver_probe.c @@ -146,7 +146,7 @@ static int __init test_async_probe_init(void) calltime = ktime_get(); for_each_online_cpu(cpu) { nid = cpu_to_node(cpu); - pdev = &sync_dev[sync_id]; + pdev = &async_dev[async_id]; *pdev = test_platform_device_register_node("test_async_driver", async_id, -- 2.39.0