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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2018-05-29 16:33:48 +0300
committerMarcel Holtmann <marcel@holtmann.org>2018-05-30 08:16:04 +0200
commit3bf5e97d7bbd175248da02efca2b265d13fb6041 (patch)
treec52acb227090112c167fc5ceff3c5a3fb1d32d7d /net/bluetooth/smp.c
parentBluetooth: hci_qca: Fix "Sleep inside atomic section" warning (diff)
downloadlinux-dev-3bf5e97d7bbd175248da02efca2b265d13fb6041.tar.xz
linux-dev-3bf5e97d7bbd175248da02efca2b265d13fb6041.zip
Bluetooth: Re-use kstrtobool_from_user()
Re-use kstrtobool_from_user() instead of open coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth/smp.c')
-rw-r--r--net/bluetooth/smp.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index a2ddae2f37d7..ae91e2d40056 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -3315,16 +3315,12 @@ static ssize_t force_bredr_smp_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 (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_BREDR_SMP))
return -EALREADY;