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Commit 4b46c654 authored by Shashank Mittal's avatar Shashank Mittal
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coresight: set invalid default cpu id 



Current code sets default CPU id as of CPU0. This causes a failure in
case where device tree declares a CoreSight node that is associated with
a CPU that's not available on that target. This causes complete failure of
the system.

Set default CPU id to -1 to avoid this problem.

Change-Id: I77e5f734666a5f806013d685e89902ce5983cf49
Signed-off-by: default avatarShashank Mittal <mittals@codeaurora.org>
parent a8371783

drivers/hwtracing/coresight/of_coresight.c

+2 −2
Original line number Diff line number Diff line
@@ -192,8 +192,8 @@ struct coresight_platform_data *of_get_coresight_platform_data( 
		} while (ep);

	}



	/* Affinity defaults to CPU0 */

	pdata->cpu = 0;

	/* Affinity defaults to -1 (invalid) */

	pdata->cpu = -1;

	dn = of_parse_phandle(node, "cpu", 0);

	for (cpu = 0; dn && cpu < nr_cpu_ids; cpu++) {

		if (dn == of_get_cpu_node(cpu, NULL)) {