From c5cd4b74fd8a51d6104b8801269dd47f98f84842 Mon Sep 17 00:00:00 2001
From: Junhao He <hejunhao2@hisilicon.com>
Date: Mon, 14 Jun 2021 11:58:57 -0600
Subject: [PATCH] coresight: core: Fix use of uninitialized pointer
[ Upstream commit d777a8991847729ec4e2a13fcad58c2b00bb19dc ]
Currently the pointer "sink" might be checked before initialized. Fix
this by initializing this pointer.
Link: https://lore.kernel.org/r/1620912469-52222-2-git-send-email-liuqi115@huawei.com
Fixes: 6d578258b955 ("coresight: Make sysfs functional on topologies with per core sink")
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwtracing/coresight/coresight-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
index cc9e8025c533..b2088d2d386a 100644
--- a/drivers/hwtracing/coresight/coresight-core.c
+++ b/drivers/hwtracing/coresight/coresight-core.c
@@ -581,7 +581,7 @@ static struct coresight_device *
coresight_find_enabled_sink(struct coresight_device *csdev)
{
int i;
- struct coresight_device *sink;
+ struct coresight_device *sink = NULL;
if ((csdev->type == CORESIGHT_DEV_TYPE_SINK ||
csdev->type == CORESIGHT_DEV_TYPE_LINKSINK) &&