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write_irq_affinity() returns the number of written bytes, which means success, unconditionally whether the actual irq_set_affinity() call succeeded or not. Add proper error handling and pass the error code returned from irq_set_affinity() back to user space in case of failure. [ tglx: Fixed coding style and massaged changelog ] Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jiang Biao <jiang.biao2@zte.com.cn> Cc: zhong.weidong@zte.com.cn Link: https://lkml.kernel.org/r/1510106103-184761-1-git-send-email-wen.yang99@zte.com.cn
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.