Commit be06049e authored Jul 28, 2021 by Saurabh Ambulkar Committed by Gerrit - the friendly Code Review server Aug 17, 2021

coresight: Add Null check before accessing pointer buf



Add NULL check to avoid potential NULL pointer dereference for
"buf"  pointer.

Change-Id: I80b29fdacfd8a95a895a32f30b99eb00b3fc2f55
Signed-off-by: Saurabh Ambulkar <sambulka@codeaurora.org>

parent c688b1ea

drivers/hwtracing/coresight/coresight-tmc-etf.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -237,6 +237,9 @@ static int tmc_enable_etf_sink_perf(struct coresight_device csdev, void data)
		struct perf_output_handle *handle = data;
		struct cs_buffers *buf = etm_perf_sink_config(handle);

		if (!buf)
		return -EINVAL;

		spin_lock_irqsave(&drvdata->spinlock, flags);
		do {
		ret = -EINVAL;