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-rw-r--r--drivers/bluetooth/hci_serdev.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/bluetooth/hci_serdev.c b/drivers/bluetooth/hci_serdev.c
index 71664b22ec9d..e0e6461b9200 100644
--- a/drivers/bluetooth/hci_serdev.c
+++ b/drivers/bluetooth/hci_serdev.c
@@ -303,6 +303,7 @@ int hci_uart_register_device(struct hci_uart *hu,
hci_set_drvdata(hdev, hu);
INIT_WORK(&hu->write_work, hci_uart_write_work);
+ percpu_init_rwsem(&hu->proto_lock);
/* Only when vendor specific setup callback is provided, consider
* the manufacturer information valid. This avoids filling in the