hpsa-flush-work-queue-hpsa_wq-in-fail_all_outstanding_cmds

hpsa: flush work queue hpsa_wq in fail_all_outstanding_cmds

From: Stephen M. Cameron <scameron@beardog.cce.hp.com>

This is so that fail_all_outstanding_cmds will not call
finish_cmd() to operate on a partially constructed command.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
---
 drivers/scsi/hpsa.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 851c967..30a7eb8 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -6721,6 +6721,7 @@ static void fail_all_outstanding_cmds(struct ctlr_info *h)
 	int i, refcount;
 	struct CommandList *c;
 
+	flush_workqueue(hpsa_wq); /* ensure all cmds are fully built */
 	for (i = 0; i < h->nr_cmds; i++) {
 		c = h->cmd_pool + i;
 		refcount = atomic_inc_return(&c->refcount);