From 0d73122c3229a332286f3a256ba098d124aba066 Mon Sep 17 00:00:00 2001
From: "Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>
Date: Wed, 21 Oct 2015 15:16:24 -0500
Subject: cxlflash: Fix to avoid lock instrumentation rejection

When running with lock instrumentation (e.g. lockdep), some of the
instrumentation can become disabled at probe time for a cxlflash
adapter. This is due to a missing lock registration for the tmf_slock.

The fix is to call spin_lock_init() for the tmf_slock during probe.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Acked-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
---
 drivers/scsi/cxlflash/main.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/scsi/cxlflash/main.c')

diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index afaf5334a4c9..1e5bf0ca81da 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -2410,6 +2410,7 @@ static int cxlflash_probe(struct pci_dev *pdev,
 	INIT_WORK(&cfg->work_q, cxlflash_worker_thread);
 	cfg->lr_state = LINK_RESET_INVALID;
 	cfg->lr_port = -1;
+	spin_lock_init(&cfg->tmf_slock);
 	mutex_init(&cfg->ctx_tbl_list_mutex);
 	mutex_init(&cfg->ctx_recovery_mutex);
 	init_rwsem(&cfg->ioctl_rwsem);
-- 
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