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-rw-r--r--drivers/s390/block/dasd.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 0e3fdfdbd098..f3099c8cc143 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1712,8 +1712,11 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
/* check for for attention message */
if (scsw_dstat(&irb->scsw) & DEV_STAT_ATTENTION) {
device = dasd_device_from_cdev_locked(cdev);
- device->discipline->check_attention(device, irb->esw.esw1.lpum);
- dasd_put_device(device);
+ if (!IS_ERR(device)) {
+ device->discipline->check_attention(device,
+ irb->esw.esw1.lpum);
+ dasd_put_device(device);
+ }
}
if (!cqr)