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[ Upstream commit96d7cb932e] floppy_check_events() is supposed to return bit flags to say which events occured. We should return zero to say that no event flags are set. Only BIT(0) and BIT(1) are used in the caller. And .check_events interface also expect to return an unsigned int value. However, after commita0c80efe59, it may return -EINTR (-4u). Here, both BIT(0) and BIT(1) are cleared. So this patch shouldn't affect runtime, but it obviously is still worth fixing. Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes:a0c80efe59("floppy: fix lock_fdc() signal handling") Signed-off-by: Yufen Yu <yuyufen@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.