usb_kdb: only process events successfully received

Causes unbound key repeat on error otherwise.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>

diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 387373746147dff2e22b99860b37c6fcc405d2b8..e0c1e6d2b7965908b4a2c338a6951676519f362a 100644 (file)
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -340,10 +340,9 @@ static inline void usb_kbd_poll_for_event(struct usb_device *dev)
        struct usb_kbd_pdata *data = dev->privptr;
 
        /* Submit a interrupt transfer request */
-       usb_submit_int_msg(dev, data->intpipe, &data->new[0], data->intpktsize,
-                          data->intinterval);
-
-       usb_kbd_irq_worker(dev);
+       if (usb_submit_int_msg(dev, data->intpipe, &data->new[0],
+                              data->intpktsize, data->intinterval) >= 0)
+               usb_kbd_irq_worker(dev);
 #elif defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP) || \
       defined(CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE)
 #if defined(CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP)