diff options
Diffstat (limited to 'drivers/sbus')
| -rw-r--r-- | drivers/sbus/char/openprom.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c index 5843288f6..e077ebd89 100644 --- a/drivers/sbus/char/openprom.c +++ b/drivers/sbus/char/openprom.c @@ -390,16 +390,9 @@ static int copyin_string(char __user *user, size_t len, char **ptr) if ((ssize_t)len < 0 || (ssize_t)(len + 1) < 0) return -EINVAL; - tmp = kmalloc(len + 1, GFP_KERNEL); - if (!tmp) - return -ENOMEM; - - if (copy_from_user(tmp, user, len)) { - kfree(tmp); - return -EFAULT; - } - - tmp[len] = '\0'; + tmp = memdup_user_nul(user, len); + if (IS_ERR(tmp)) + return PTR_ERR(tmp); *ptr = tmp; |