qla2xxx: Fix vport delete hang when logins are outstanding.

BugLink: http://bugs.launchpad.net/bugs/793702

commit 9f40682e2857a3c2ddb80a87b185af3c6a708346 upstream.

Timer is required to flush out entries that may be present in work queues.

Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index d3e58d7..c52a0a2 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1877,14 +1877,15 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
 
        scsi_remove_host(vha->host);
 
+       /* Allow timer to run to drain queued items, when removing vp */
+       qla24xx_deallocate_vp_id(vha);
+
        if (vha->timer_active) {
                qla2x00_vp_stop_timer(vha);
                DEBUG15(printk(KERN_INFO "scsi(%ld): timer for the vport[%d]"
                " = %p has stopped\n", vha->host_no, vha->vp_idx, vha));
        }
 
-       qla24xx_deallocate_vp_id(vha);
-
        /* No pending activities shall be there on the vha now */
        DEBUG(msleep(random32()%10));  /* Just to see if something falls on
                                        * the net we have placed below */