genirq/proc: Return proper error code when irq_set_affinity() fails
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: NWen Yang <wen.yang99@zte.com.cn> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NJiang 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
Showing
想要评论请 注册 或 登录