[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>

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index c35d8054dbbb99b5f7658ba06b22463df46d351d..d37230faf086015430d7f3b0b0849a2701c38894 100644 (file)
--- 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);