diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cgroup.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 657f8f8d93a5..28debe4e1488 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1424,14 +1424,17 @@ static ssize_t cgroup_write_string(struct cgroup *cgrp, struct cftype *cft, if (buffer == NULL) return -ENOMEM; } - if (nbytes && copy_from_user(buffer, userbuf, nbytes)) - return -EFAULT; + if (nbytes && copy_from_user(buffer, userbuf, nbytes)) { + retval = -EFAULT; + goto out; + } buffer[nbytes] = 0; /* nul-terminate */ strstrip(buffer); retval = cft->write_string(cgrp, cft, buffer); if (!retval) retval = nbytes; +out: if (buffer != local_buffer) kfree(buffer); return retval; |