diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
| commit | 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch) | |
| tree | fa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/sbus/char | |
| parent | d4e493caf788ef44982e131ff9c786546904d934 (diff) | |
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/sbus/char')
| -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; |