From: Cornelia Huck Signed-off-by: Cornelia Huck Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/device.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) Index: linux-2.6/drivers/s390/cio/device.c =================================================================== --- linux-2.6.orig/drivers/s390/cio/device.c +++ linux-2.6/drivers/s390/cio/device.c @@ -138,6 +138,19 @@ static struct css_device_id io_subchanne }; MODULE_DEVICE_TABLE(css, io_subchannel_ids); +static int io_subchannel_prepare(struct subchannel *sch) +{ + struct ccw_device *cdev; + /* + * Don't allow suspend while a ccw device registration + * is still outstanding. + */ + cdev = sch_get_cdev(sch); + if (cdev && !device_is_registered(&cdev->dev)) + return -EAGAIN; + return 0; +} + static struct css_driver io_subchannel_driver = { .owner = THIS_MODULE, .subchannel_type = io_subchannel_ids, @@ -148,6 +161,7 @@ static struct css_driver io_subchannel_d .probe = io_subchannel_probe, .remove = io_subchannel_remove, .shutdown = io_subchannel_shutdown, + .prepare = io_subchannel_prepare, }; struct workqueue_struct *ccw_device_work; -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/