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The scsi_block_reqs_cnt increased in ufshcd_hold() is supposed to be decreased back in ufshcd_ungate_work() in a paired way. However, if specific ufshcd_hold/release sequences are met, it is possible that scsi_block_reqs_cnt is increased twice but only one ungate work is queued. To make sure scsi_block_reqs_cnt is handled by ufshcd_hold() and ufshcd_ungate_work() in a paired way, increase it only if queue_work() returns true. Link: https://lore.kernel.org/r/1604384682-15837-2-git-send-email-cang@codeaurora.org Reviewed-by: Hongwu Su <hongwus@codeaurora.org> Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Reviewed-by: Bean Huo <beanhuo@micron.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.