[S390] cio: fix incorrect ccw_device_init_count (16d2ce27) · Commits · 戴 / test

If device recognition is interrupted by a subchannel event indicating that the device is gone, ccw_device_init_count is not correctly decreased. Fix this by reporting the corresponding event to the device recognition callback via the state machine. Signed-off-by:

Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by:

Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/cio/device.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -1455,7 +1455,16 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
		break;
		case IO_SCH_UNREG_ATTACH:
		case IO_SCH_UNREG:
		if (cdev)
		if (!cdev)
		break;
		if (cdev->private->state == DEV_STATE_SENSE_ID) {
		/*
		* Note: delayed work triggered by this event
		* and repeated calls to sch_event are synchronized
		* by the above check for work_pending(cdev).
		*/
		dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
		} else
		ccw_device_set_notoper(cdev);
		break;
		case IO_SCH_NOP:

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