The in_use_bm bitmap of struct sdebug_queue should be accessed under protection of the qc_lock spinlock. Make sure that this lock is taken before calling find_first_bit() at the beginning of the function sdebug_blk_mq_poll(). Link: https://lore.kernel.org/r/20220404045547.579887-1-damien.lemoal@opensource.wdc.com Fixes: 3fd07aecb750 ("scsi: scsi_debug: Fix qc_lock use in sdebug_blk_mq_poll()") Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> 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.
Description
Languages
C
97.6%
Assembly
1%
Shell
0.5%
Python
0.3%
Makefile
0.3%