[SCSI] zfcp: Fix request queue locking

The request queue lock can be acquired from softirq context when the
SCSI midlayer issues commands. Disable softirqs for this lock when
commands are issued from zfcp.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index d6dbd653fde9..69d632d851d9 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -423,9 +423,9 @@ void zfcp_qdio_close(struct zfcp_adapter *adapter)
 
         /* clear QDIOUP flag, thus do_QDIO is not called during qdio_shutdown */
         req_q = &adapter->req_q;
-        spin_lock(&req_q->lock);
+        spin_lock_bh(&req_q->lock);
         atomic_clear_mask(ZFCP_STATUS_ADAPTER_QDIOUP, &adapter->status);
-        spin_unlock(&req_q->lock);
+        spin_unlock_bh(&req_q->lock);
 
         qdio_shutdown(adapter->ccw_device, QDIO_FLAG_CLEANUP_USING_CLEAR);