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coresight: set invalid default cpu id

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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: Shashank Mittal <mittals@codeaurora.org>
This commit is contained in:
Shashank Mittal 2016-02-23 11:15:09 -08:00 • committed by David Keitel
parent 019f188ab5
commit 7d151e606e
1 changed files with 2 additions and 2 deletions
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4
drivers/hwtracing/coresight/of_coresight.c
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@ -183,8 +183,8 @@ 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)) {