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In error handling prepare stage, after SCSI requests are blocked, do a down/up_write(clk_scaling_lock) to clean up the queuecommand() path. Meanwhile, stop eeh_work in case it disturbs error recovery. Moreover, reset ufshcd_state at the entrance of ufshcd_probe_hba(), since it may be called multiple times during error recovery. Link: https://lore.kernel.org/r/1614145010-36079-2-git-send-email-cang@codeaurora.org Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.