tty: Update cdc_acm
The CDC ACM driver uses the tty layer correctly so needs conversion. Start by
adding and initializing the port structures.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 7a1164d..41d4ca5 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -89,6 +89,9 @@
#define ACM_READY(acm) (acm && acm->dev && acm->used)
+static const struct tty_port_operations acm_port_ops = {
+};
+
#ifdef VERBOSE_DEBUG
#define verbose 1
#else
@@ -1082,6 +1085,8 @@
spin_lock_init(&acm->read_lock);
mutex_init(&acm->mutex);
acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
+ tty_port_init(&acm->port);
+ acm->port.ops = &acm_port_ops;
buf = usb_buffer_alloc(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma);
if (!buf) {
