From 288f31431be58d8d8b5f8524a8dd8e2aa2713fc0 Mon Sep 17 00:00:00 2001 From: Dmitry Antipov Date: Wed, 17 Jun 2026 18:30:19 +0300 Subject: [PATCH] Bluetooth: simplify force_no_mitm_write() with kstrtobool_from_user() Simplify 'force_no_mitm_write()' by using the convenient 'kstrtobool_from_user()'. Signed-off-by: Dmitry Antipov Signed-off-by: Luiz Augusto von Dentz --- net/bluetooth/hci_debugfs.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c index 0635e4641db4..aadffaaff20e 100644 --- a/net/bluetooth/hci_debugfs.c +++ b/net/bluetooth/hci_debugfs.c @@ -1161,16 +1161,12 @@ static ssize_t force_no_mitm_write(struct file *file, size_t count, loff_t *ppos) { struct hci_dev *hdev = file->private_data; - char buf[32]; - size_t buf_size = min(count, (sizeof(buf) - 1)); bool enable; + int err; - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - - buf[buf_size] = '\0'; - if (kstrtobool(buf, &enable)) - return -EINVAL; + err = kstrtobool_from_user(user_buf, count, &enable); + if (err) + return err; if (enable == hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM)) return -EALREADY;