net: hns3: fix debugfs concurrency issue between kfree buffer and read

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[ Upstream commit c295160b1d ]

Now in hns3_dbg_uninit(), there may be concurrency between
kfree buffer and read, it may result in memory error.

Moving debugfs_remove_recursive() in front of kfree buffer to ensure
they don't happen at the same time.

Fixes: 5e69ea7ee2 ("net: hns3: refactor the debugfs process")
Signed-off-by: Hao Chen <chenhao418@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Hao Chen 2023-09-06 15:20:15 +08:00 • committed by Greg Kroah-Hartman

parent 8bfa87cf4a

commit 2c9643fa63

1 changed files with 4 additions and 3 deletions

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drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

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