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author | Duoming Zhou <duoming@zju.edu.cn> | 2022-10-18 16:34:24 +0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-09 14:38:19 +0100 |
commit | ce8cc75c7419ad54cb99437543a54c97c7446db5 (patch) | |
tree | ba5ace7d8c7d1e9a4861ee2f86e2667ea72ab49e /tools/perf/scripts/python/stackcollapse.py | |
parent | a614e753e8e7f3322b560dcf6eaf44468ec22b3a (diff) |
drivers: staging: r8188eu: Fix sleep-in-atomic-context bug in rtw_join_timeout_handler
The rtw_join_timeout_handler() is a timer handler that
runs in atomic context, but it could call msleep().
As a result, the sleep-in-atomic-context bug will happen.
The process is shown below:
(atomic context)
rtw_join_timeout_handler
_rtw_join_timeout_handler
rtw_do_join
rtw_select_and_join_from_scanned_queue
rtw_indicate_disconnect
rtw_lps_ctrl_wk_cmd
lps_ctrl_wk_hdl
LPS_Leave
LPS_RF_ON_check
msleep //sleep in atomic context
Fix by removing msleep() and replacing with mdelay().
Fixes: 15865124feed ("staging: r8188eu: introduce new core dir for RTL8188eu driver")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20221018083424.79741-1-duoming@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions