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driver core: Fix test_async_probe_init saves device in wrong array 

[ Upstream commit 9be182da0a ]

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: 57ea974fb8 ("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>
This commit is contained in:
Chen Zhongjin 2022-11-25 14:35:41 +08:00 committed by Greg Kroah-Hartman
parent cfc7462ff8
commit c804752148
1 changed files with 1 additions and 1 deletions
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2
drivers/base/test/test_async_driver_probe.c
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@ -145,7 +145,7 @@ 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,