1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index 6c9cbb59552a..a9427a8b8672 100644
--- a/drivers/usb/serial/usb_debug.c
+++ b/drivers/usb/serial/usb_debug.c
@@ -15,6 +15,7 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
+#define URB_DEBUG_MAX_IN_FLIGHT_URBS    4000
 #define USB_DEBUG_MAX_PACKET_SIZE       8
 
 static struct usb_device_id id_table [] = {
@@ -46,6 +47,7 @@ static struct usb_serial_driver debug_device = {
         .id_table =             id_table,
         .num_ports =            1,
         .open =                 usb_debug_open,
+        .max_in_flight_urbs =   URB_DEBUG_MAX_IN_FLIGHT_URBS,
 };
 
 static int __init debug_init(void)