From: Junhao He Date: Mon, 14 Jun 2021 17:58:57 +0000 (-0600) Subject: coresight: core: Fix use of uninitialized pointer X-Git-Tag: v5.12.17~80 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b0f7b602bbb47dfe6498af100190bd734790fc10;p=thirdparty%2Fkernel%2Fstable.git coresight: core: Fix use of uninitialized pointer [ 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 Signed-off-by: Qi Liu Signed-off-by: Suzuki K Poulose Signed-off-by: Mathieu Poirier Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index 0062c89356530..237a8c0d6c244 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) &&