[S390] qdio: continue polling for buffer state ERROR

Inbound traffic handling may hang if next buffer to check is in
state ERROR, polling is stopped and the final check for further
available inbound buffers disregards buffers in state ERROR.
This patch includes state ERROR when checking availability of
more inbound buffers.

Cc: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 999fe80c40516983d68a6435b5718c5433af1737..5781c5d10cff37d910afa1a7d32516472234750c 100644 (file)
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -531,7 +531,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q)
        qdio_siga_sync_q(q);
        get_buf_state(q, q->first_to_check, &state, 0);
 
-       if (state == SLSB_P_INPUT_PRIMED)
+       if (state == SLSB_P_INPUT_PRIMED || state == SLSB_P_INPUT_ERROR)
                /* more work coming */
                return 0;