[S390] dasd: fix unsolicited SIM handling.

Add missing schedule_bh and check that there is 32 bit sense data.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index e0b77210d37a..3590fdb5b2fd 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1418,8 +1418,10 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device,
 
 
         /* service information message SIM */
-        if ((irb->ecw[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE) {
+        if (irb->esw.esw0.erw.cons && (irb->ecw[27] & DASD_SENSE_BIT_0) &&
+            ((irb->ecw[6] & DASD_SIM_SENSE) == DASD_SIM_SENSE)) {
                 dasd_3990_erp_handle_sim(device, irb->ecw);
+                dasd_schedule_device_bh(device);
                 return;
         }