From: Mike Marciniszyn <mike.marciniszyn@intel.com>
Date: Fri, 24 May 2019 15:44:45 +0000 (-0400)
Subject: IB/hfi1: Insure freeze_work work_struct is canceled on shutdown
X-Git-Tag: v4.19.56~52
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=830991121773d2c937e8c9d0ac3659a87e6796f1;p=platform%2Fkernel%2Flinux-rpi.git

IB/hfi1: Insure freeze_work work_struct is canceled on shutdown

[ Upstream commit 6d517353c70bb0818b691ca003afdcb5ee5ea44e ]

By code inspection, the freeze_work is never canceled.

Fix by adding a cancel_work_sync in the shutdown path to insure it is no
longer running.

Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index b12c8ff..d8eb4dc 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -9849,6 +9849,7 @@ void hfi1_quiet_serdes(struct hfi1_pportdata *ppd)
 
 	/* disable the port */
 	clear_rcvctrl(dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK);
+	cancel_work_sync(&ppd->freeze_work);
 }
 
 static inline int init_cpu_counters(struct hfi1_devdata *dd)