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[ Upstream commitce8cc75c74] 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:15865124fe("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> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.