There are two warnings reported by smatch: drivers/block/ublk_drv.c:445 ublk_setup_iod_zoned() warn: signedness bug returning '(-95)' drivers/block/ublk_drv.c:963 ublk_setup_iod() warn: signedness bug returning '(-5)' The type of "blk_status_t" is either be a u32 or u8, but this two functions return a negative value when not supported or failed. Use the error code of the blk module to fix these warnings. Fixes: 29802d7ca33b ("ublk: enable zoned storage support") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/r/202308100201.TCRhgdvN-lkp@intel.com/ Signed-off-by: Li Zetao <lizetao1@huawei.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20230810084836.3535322-1-lizetao1@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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.
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