driver core: Fix test_async_probe_init saves device in wrong array

[ 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 <chenzhongjin@huawei.com>
Link: https://lore.kernel.org/r/20221125063541.241328-1-chenzhongjin@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/base/test/test_async_driver_probe.c b/drivers/base/test/test_async_driver_probe.c
index 3bb7beb..c157a91 100644 (file)
--- 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);
        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,
 
                *pdev = test_platform_device_register_node("test_async_driver",
                                                           async_id,