X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fs390%2Fcio%2Fqdio_main.c;h=3e602e8affa78cba97282e41c5f9e3a18315e45b;hb=386fa69f4702754c71cb9db9aa431edc676d690d;hp=bbd3e511c771addebda2639675d85664b3191494;hpb=5b95962b114d51dd2ba5d3a2f48d0576ef765144;p=karo-tx-linux.git

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index bbd3e511c771..3e602e8affa7 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);