Bluetooth VHCI: fasync BKL pushdown
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 7734bc9..d97700a 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -318,18 +318,21 @@
static int vhci_fasync(int fd, struct file *file, int on)
{
struct vhci_data *data = file->private_data;
- int err;
+ int err = 0;
+ lock_kernel();
err = fasync_helper(fd, file, on, &data->fasync);
if (err < 0)
- return err;
+ goto out;
if (on)
data->flags |= VHCI_FASYNC;
else
data->flags &= ~VHCI_FASYNC;
- return 0;
+out:
+ unlock_kernel();
+ return err;
}
static const struct file_operations vhci_fops = {