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path: root/drivers/s390/cio/cio.c
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Diffstat (limited to 'drivers/s390/cio/cio.c')
-rw-r--r--drivers/s390/cio/cio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 6fec90eab00e..f27b2b866f5a 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -519,6 +519,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid)
519 memset(sch, 0, sizeof(struct subchannel)); 519 memset(sch, 0, sizeof(struct subchannel));
520 520
521 spin_lock_init(&sch->lock); 521 spin_lock_init(&sch->lock);
522 mutex_init(&sch->reg_mutex);
522 523
523 /* Set a name for the subchannel */ 524 /* Set a name for the subchannel */
524 snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.%x.%04x", schid.ssid, 525 snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.%x.%04x", schid.ssid,