driver core: clean up device_shutdown (37b0c020) · Commits · 戴 / test

drivers/base/core.c

+19 −1

Original line number	Diff line number	Diff line
		@@ -1415,5 +1415,23 @@ out:
		put_device(dev);
		return error;
		}

		EXPORT_SYMBOL_GPL(device_move);

		/**
		* device_shutdown - call ->shutdown() on each device to shutdown.
		*/
		void device_shutdown(void)
		{
		struct device * dev, *devn;

		list_for_each_entry_safe_reverse(dev, devn, &devices_kset->list,
		kobj.entry) {
		if (dev->bus && dev->bus->shutdown) {
		dev_dbg(dev, "shutdown\n");
		dev->bus->shutdown(dev);
		} else if (dev->driver && dev->driver->shutdown) {
		dev_dbg(dev, "shutdown\n");
		dev->driver->shutdown(dev);
		}
		}
		}

+0 −1

deleted100644 → 0

+0 −43

Original line number	Diff line number	Diff line
		/*
		* shutdown.c - power management functions for the device tree.
		*
		* Copyright (c) 2002-3 Patrick Mochel
		* 2002-3 Open Source Development Lab
		*
		* This file is released under the GPLv2
		*
		*/

		#include <linux/device.h>
		#include <asm/semaphore.h>

		#include "../base.h"

		/**
		* We handle system devices differently - we suspend and shut them
		* down last and resume them first. That way, we don't do anything stupid like
		* shutting down the interrupt controller before any devices..
		*
		* Note that there are not different stages for power management calls -
		* they only get one called once when interrupts are disabled.
		*/


		/**
		* device_shutdown - call ->shutdown() on each device to shutdown.
		*/
		void device_shutdown(void)
		{
		struct device * dev, *devn;

		list_for_each_entry_safe_reverse(dev, devn, &devices_kset->list,
		kobj.entry) {
		if (dev->bus && dev->bus->shutdown) {
		dev_dbg(dev, "shutdown\n");
		dev->bus->shutdown(dev);
		} else if (dev->driver && dev->driver->shutdown) {
		dev_dbg(dev, "shutdown\n");
		dev->driver->shutdown(dev);
		}
		}
		}