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    Subject[PATCH 5.12 624/700] coresight: core: Fix use of uninitialized pointer
    Date
    From: Junhao He <hejunhao2@hisilicon.com>

    [ 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 0062c8935653..237a8c0d6c24 100644
    --- a/drivers/hwtracing/coresight/coresight-core.c
    +++ b/drivers/hwtracing/coresight/coresight-core.c
    @@ -595,7 +595,7 @@ 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


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