linux-kernel - [PATCH 1/3] coresight: core: Fix use of uninitialized pointer

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Message-ID: <1620912469-52222-2-git-send-email-liuqi115@huawei.com>
Date:   Thu, 13 May 2021 21:27:47 +0800
From:   Qi Liu <liuqi115@...wei.com>
To:     <mathieu.poirier@...aro.org>, <suzuki.poulose@....com>,
        <mike.leach@...aro.org>
CC:     <coresight@...ts.linaro.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linuxarm@...wei.com>
Subject: [PATCH 1/3] coresight: core: Fix use of uninitialized pointer

From: Junhao He <hejunhao2@...ilicon.com>

Currently the pointer "sink" might be checked before initialized. Fix
this by initializing this pointer.

Signed-off-by: Junhao He <hejunhao2@...ilicon.com>
Signed-off-by: Qi Liu <liuqi115@...wei.com>
---
 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 6c68d34..4ddf3d2 100644
--- a/drivers/hwtracing/coresight/coresight-core.c
+++ b/drivers/hwtracing/coresight/coresight-core.c
@@ -608,7 +608,7 @@ 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) &&
-- 
2.7.4