1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index 888152ce3ec..307bc0ddff9 100644
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -295,6 +295,13 @@ static void carl9170_usb_rx_irq_complete(struct urb *urb)
                 goto resubmit;
         }
 
+        /*
+         * While the carl9170 firmware does not use this EP, the
+         * firmware loader in the EEPROM unfortunately does.
+         * Therefore we need to be ready to handle out-of-band
+         * responses and traps in case the firmware crashed and
+         * the loader took over again.
+         */
         carl9170_handle_command_response(ar, urb->transfer_buffer,
                                          urb->actual_length);