diff options
Diffstat (limited to 'drivers/platform/x86/think-lmi.c')
| -rw-r--r-- | drivers/platform/x86/think-lmi.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index c6c9fbb8a53e..b57061079288 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -442,14 +442,9 @@ static ssize_t kbdlang_store(struct kobject *kobj, struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj); int length; - length = strlen(buf); - if (!length) - return -EINVAL; - - if (buf[length-1] == '\n') - length--; - - if (length >= TLMI_LANG_MAXLEN) + /* Calculate length till '\n' or terminating 0 */ + length = strchrnul(buf, '\n') - buf; + if (!length || length >= TLMI_LANG_MAXLEN) return -EINVAL; memcpy(setting->kbdlang, buf, length); |