qdio: support forced signal adapter indications

This patch ensures that signal adapter commands are issued if they are
indicated to be required.

Signed-off-by: Einar Lueck <elelueck@de.ibm.com>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index a7153f2f3aff..9a122280246c 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1592,12 +1592,9 @@ set:
         used = atomic_add_return(count, &q->nr_buf_used) - count;
         BUG_ON(used + count > QDIO_MAX_BUFFERS_PER_Q);
 
-        /* no need to signal as long as the adapter had free buffers */
-        if (used)
-                return 0;
-
         if (need_siga_in(q))
                 return qdio_siga_input(q);
+
         return 0;
 }