diff options
| author | Wolfram Sang <wsa@kernel.org> | 2021-10-11 08:15:48 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-10-11 08:15:48 +0200 |
| commit | c5c34f5793f384ed2895584c6e2350b059c3f161 (patch) | |
| tree | 14a73568207fb3d38d7aa43439493ac8bc906bde /kernel/sched/debug.c | |
| parent | 669b2e4aa1a869def4dc207ea084fdd77366d646 (diff) | |
| parent | 64570fbc14f8d7cb3fe3995f20e26bc25ce4b2cc (diff) | |
Merge branch 'i2c/for-current' into i2c/for-mergewindow
Diffstat (limited to 'kernel/sched/debug.c')
| -rw-r--r-- | kernel/sched/debug.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 49716228efb4..17a653b67006 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -173,16 +173,22 @@ static ssize_t sched_scaling_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) { char buf[16]; + unsigned int scaling; if (cnt > 15) cnt = 15; if (copy_from_user(&buf, ubuf, cnt)) return -EFAULT; + buf[cnt] = '\0'; - if (kstrtouint(buf, 10, &sysctl_sched_tunable_scaling)) + if (kstrtouint(buf, 10, &scaling)) return -EINVAL; + if (scaling >= SCHED_TUNABLESCALING_END) + return -EINVAL; + + sysctl_sched_tunable_scaling = scaling; if (sched_update_scaling()) return -EINVAL; |