uwb: add error messages when reservation establish fails

Add better error messages during the channel change/reservation establish
process.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/uwb/beacon.c b/drivers/uwb/beacon.c
index 57b5ff61020c..b476187adf55 100644
--- a/drivers/uwb/beacon.c
+++ b/drivers/uwb/beacon.c
@@ -125,8 +125,10 @@ int uwb_rc_beacon(struct uwb_rc *rc, int channel, unsigned bpst_offset)
         else {
                 /* channel >= 0...dah */
                 result = uwb_rc_start_beacon(rc, bpst_offset, channel);
-                if (result < 0)
+                if (result < 0) {
+                        dev_err(dev, "Cannot start beaconing: %d\n", result);
                         return result;
+                }
                 if (le16_to_cpu(rc->ies->wIELength) > 0) {
                         result = uwb_rc_set_ie(rc, rc->ies);
                         if (result < 0) {