[SCSI] ibmvfc: Fix locking in ibmvfc_remove

Need to grab the host lock around the call to ibmvfc_link_down.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index c35d8054dbbb..d37230faf086 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -4420,7 +4420,11 @@ static int ibmvfc_remove(struct vio_dev *vdev)
 
         ENTER;
         ibmvfc_remove_trace_file(&vhost->host->shost_dev.kobj, &ibmvfc_trace_attr);
+
+        spin_lock_irqsave(vhost->host->host_lock, flags);
         ibmvfc_link_down(vhost, IBMVFC_HOST_OFFLINE);
+        spin_unlock_irqrestore(vhost->host->host_lock, flags);
+
         ibmvfc_wait_while_resetting(vhost);
         ibmvfc_release_crq_queue(vhost);
         kthread_stop(vhost->work_thread);