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Diffstat (limited to 'net/bluetooth/hci_debugfs.c')
-rw-r--r--net/bluetooth/hci_debugfs.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index 418b76e557b0..0d8ab5b3c177 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -47,19 +47,15 @@ static ssize_t __name ## _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 (test_bit(HCI_UP, &hdev->flags)) \
return -EBUSY; \
\
- if (copy_from_user(buf, user_buf, buf_size)) \
- return -EFAULT; \
- \
- buf[buf_size] = '\0'; \
- if (strtobool(buf, &enable)) \
- return -EINVAL; \
+ err = kstrtobool_from_user(user_buf, count, &enable); \
+ if (err) \
+ return err; \
\
if (enable == test_bit(__quirk, &hdev->quirks)) \
return -EALREADY; \
@@ -658,19 +654,15 @@ static ssize_t force_static_address_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 (test_bit(HCI_UP, &hdev->flags))
return -EBUSY;
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- buf[buf_size] = '\0';
- if (strtobool(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_STATIC_ADDR))
return -EALREADY;