diff options
| -rw-r--r-- | drivers/usb/gadget/function/u_data_bridge.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/gadget/function/u_data_bridge.c b/drivers/usb/gadget/function/u_data_bridge.c index 8a0ac837d66b..1da24304bcd8 100644 --- a/drivers/usb/gadget/function/u_data_bridge.c +++ b/drivers/usb/gadget/function/u_data_bridge.c @@ -362,7 +362,7 @@ int gbridge_port_open(struct inode *inode, struct file *file) ret = wait_event_interruptible(port->open_wq, port->is_connected); if (ret) { - pr_err("open interrupted.\n"); + pr_debug("open interrupted.\n"); return ret; } @@ -521,7 +521,7 @@ ssize_t gbridge_port_write(struct file *file, if (list_empty(&port->write_pool)) { spin_unlock_irqrestore(&port->port_lock, flags); pr_debug("%s: Request list is empty.\n", __func__); - return -EAGAIN; + return 0; } pool = &port->write_pool; req = list_first_entry(pool, struct usb_request, list); @@ -912,6 +912,10 @@ void gbridge_disconnect(void *gptr, u8 portno) gser = gptr; gbridge_stop_io(port); + + /* lower DTR to modem */ + gbridge_notify_modem(gser, portno, 0); + spin_lock_irqsave(&port->port_lock, flags); port->is_connected = false; port->port_usb = NULL; |