[PATCH 5.10 526/593] coresight: core: Fix use of uninitialized pointer
From: Greg Kroah-Hartman
Date: Mon Jul 12 2021 - 03:19:46 EST
From: Junhao He <hejunhao2@xxxxxxxxxxxxx>
[ 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@xxxxxxxxxx
Fixes: 6d578258b955 ("coresight: Make sysfs functional on topologies with per core sink")
Signed-off-by: Junhao He <hejunhao2@xxxxxxxxxxxxx>
Signed-off-by: Qi Liu <liuqi115@xxxxxxxxxx>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Signed-off-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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) &&
--
2.30.2