From: Junhao He hejunhao2@hisilicon.com
stable inclusion from stable-5.10.50 commit c5cd4b74fd8a51d6104b8801269dd47f98f84842 bugzilla: 174522 https://gitee.com/openeuler/kernel/issues/I4DNFY
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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.... 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 Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.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 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) &&