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-rw-r--r--kernel/trace/trace.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 77b8dc528006..62c6506d663f 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3353,12 +3353,12 @@ tracing_cpumask_read(struct file *filp, char __user *ubuf,
mutex_lock(&tracing_cpumask_update_lock);
- len = cpumask_scnprintf(mask_str, count, tr->tracing_cpumask);
- if (count - len < 2) {
+ len = snprintf(mask_str, count, "%*pb\n",
+ cpumask_pr_args(tr->tracing_cpumask));
+ if (len >= count) {
count = -EINVAL;
goto out_err;
}
- len += sprintf(mask_str + len, "\n");
count = simple_read_from_buffer(ubuf, count, ppos, mask_str, NR_CPUS+1);
out_err: