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-rw-r--r--drivers/s390/cio/qdio_main.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index bbd3e51..3e602e8 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -528,7 +528,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
case SLSB_P_INPUT_PRIMED:
inbound_primed(q, count);
q->first_to_check = add_buf(q->first_to_check, count);
- if (atomic_sub(count, &q->nr_buf_used) == 0)
+ if (atomic_sub_return(count, &q->nr_buf_used) == 0)
qperf_inc(q, inbound_queue_full);
if (q->irq_ptr->perf_stat_enabled)
account_sbals(q, count);