现在的中断处理函数的返回代码是一个 irqreturn_t类型。

The interrupt handler function now has a return code of type irqreturn_t.

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函数调用被信号处理函数中断。

The call was interrupted by a signal handler.

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函数调用被信号处理函数中断。

The call was interrupted by a signal handler.

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