From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Mon, 18 Nov 2019 11:52:07 -0700
Subject: coresight: replicator: Fix missing spin_lock_init()

Git-commit: 9a5d847c0bdadb67892b7d176a028578aaed0c3a
Patch-mainline: v5.5-rc1
References: jsc#SLE-9326

The driver allocates the spinlock but not initialize it.
Use spin_lock_init() on it to initialize it correctly.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Tested-by: Yabin Cui <yabinc@google.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20191118185207.30441-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
---
 drivers/hwtracing/coresight/coresight-replicator.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index 43304196a1a6..e7dc1c31d20d 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -248,6 +248,7 @@ static int replicator_probe(struct device *dev, struct resource *res)
 	}
 	dev->platform_data = pdata;
 
+	spin_lock_init(&drvdata->spinlock);
 	desc.type = CORESIGHT_DEV_TYPE_LINK;
 	desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_SPLIT;
 	desc.ops = &replicator_cs_ops;
-- 
2.16.4