diff options
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-sysfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-sysfs.c b/drivers/hwtracing/coresight/coresight-sysfs.c index 80b6b634a70d..4b010f8bc4c0 100644 --- a/drivers/hwtracing/coresight/coresight-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-sysfs.c @@ -168,6 +168,9 @@ static int coresight_validate_source_sysfs(struct coresight_device *csdev, return -EINVAL; } + if (coresight_is_percpu_source(csdev) && !cpu_online(csdev->cpu)) + return -ENODEV; + return 0; } |