coresight: perf: Add NULL check before using pointer sink



Add NULL check to avoid potential NULL pointer dereference.

Change-Id: I6e63a013f599393f9703cd9a493730181f4a68de
Signed-off-by: Manohar Vavilapalli <mvavilap@codeaurora.org>

parent 19dad3f7

drivers/hwtracing/coresight/coresight-etm-perf.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -145,6 +145,9 @@ static void free_sink_buffer(struct etm_event_data *event_data)

		cpu = cpumask_first(mask);
		sink = coresight_get_sink(etm_event_cpu_path(event_data, cpu));
		if (!sink)
		return;

		sink_ops(sink)->free_buffer(event_data->snk_config);
		}