diff options
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/block/dasd.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 80e45de096a9..fb613d70c2cb 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1107,17 +1107,22 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, if (cqr) memcpy(&cqr->irb, irb, sizeof(*irb)); device = dasd_device_from_cdev_locked(cdev); - if (!IS_ERR(device)) { - device->discipline->dump_sense_dbf(device, irb, - "unsolicited"); - if ((device->features & DASD_FEATURE_ERPLOG)) - device->discipline->dump_sense(device, cqr, - irb); - dasd_device_clear_timer(device); - device->discipline->handle_unsolicited_interrupt(device, - irb); + if (IS_ERR(device)) + return; + /* ignore unsolicited interrupts for DIAG discipline */ + if (device->discipline == dasd_diag_discipline_pointer) { dasd_put_device(device); + return; } + device->discipline->dump_sense_dbf(device, irb, + "unsolicited"); + if ((device->features & DASD_FEATURE_ERPLOG)) + device->discipline->dump_sense(device, cqr, + irb); + dasd_device_clear_timer(device); + device->discipline->handle_unsolicited_interrupt(device, + irb); + dasd_put_device(device); return; } |