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Commit 5b57a6ce authored by Kenji Kaneshige's avatar Kenji Kaneshige Committed by Greg Kroah-Hartman
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PCI: hotplug: pciehp: wait for 1 second after power off slot 



According to the specification, we must wait for at least 1 second
after turning power off before taking any action that relies on power
having been removed from the slot/adapter.

Signed-off-by: default avatarKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: default avatarKristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent cca03dec

drivers/pci/hotplug/pciehp_ctrl.c

+12 −0
Original line number Diff line number Diff line
@@ -197,6 +197,12 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot) 
			    __FUNCTION__);

			return;

		}

		/*

		 * After turning power off, we must wait for at least

		 * 1 second before taking any action that relies on

		 * power having been removed from the slot/adapter.

		 */

		msleep(1000);

	}

}
@@ -615,6 +621,12 @@ int pciehp_disable_slot(struct slot *p_slot) 
			mutex_unlock(&p_slot->ctrl->crit_sect);

			return -EINVAL;

		}

		/*

		 * After turning power off, we must wait for at least

		 * 1 second before taking any action that relies on

		 * power having been removed from the slot/adapter.

		 */

		msleep(1000);

	}



	ret = remove_board(p_slot);