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coresight: core: Fix use of uninitialized pointer
authorJunhao He <hejunhao2@hisilicon.com>
Mon, 14 Jun 2021 17:58:57 +0000 (11:58 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 14 Jul 2021 15:07:41 +0000 (17:07 +0200)
[ 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 patch | blob | history

diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
index 6c68d34d956e843a87e5e88e4901acccd0f98d31..4ddf3d2338443e09edacc19605c8d20028fc2b8f 100644 (file)
--- 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) &&
wrapfs-5.3.y