[S390] cio: inform user when online/offline processing fails
Print a warning message in case a ccw device enters boxed or not operational state during online/offline processing. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -7,6 +7,10 @@
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* Cornelia Huck (cornelia.huck@de.ibm.com)
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* Martin Schwidefsky (schwidefsky@de.ibm.com)
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*/
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#define KMSG_COMPONENT "cio"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/spinlock.h>
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@ -347,6 +351,14 @@ int ccw_device_set_offline(struct ccw_device *cdev)
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spin_unlock_irq(cdev->ccwlock);
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wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
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cdev->private->state == DEV_STATE_DISCONNECTED));
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/* Inform the user if set offline failed. */
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if (cdev->private->state == DEV_STATE_BOXED) {
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pr_warning("%s: The device entered boxed state while "
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"being set offline\n", dev_name(&cdev->dev));
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} else if (cdev->private->state == DEV_STATE_NOT_OPER) {
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pr_warning("%s: The device stopped operating while "
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"being set offline\n", dev_name(&cdev->dev));
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}
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/* Give up reference from ccw_device_set_online(). */
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put_device(&cdev->dev);
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return 0;
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@ -407,6 +419,16 @@ int ccw_device_set_online(struct ccw_device *cdev)
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if ((cdev->private->state != DEV_STATE_ONLINE) &&
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(cdev->private->state != DEV_STATE_W4SENSE)) {
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spin_unlock_irq(cdev->ccwlock);
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/* Inform the user that set online failed. */
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if (cdev->private->state == DEV_STATE_BOXED) {
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pr_warning("%s: Setting the device online failed "
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"because it is boxed\n",
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dev_name(&cdev->dev));
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} else if (cdev->private->state == DEV_STATE_NOT_OPER) {
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pr_warning("%s: Setting the device online failed "
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"because it is not operational\n",
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dev_name(&cdev->dev));
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}
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/* Give up online reference since onlining failed. */
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put_device(&cdev->dev);
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return -ENODEV;
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