aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/uwb
diff options
context:
space:
mode:
authorThomas Pugliese <thomas.pugliese@gmail.com>2014-04-25 10:30:33 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-05-27 14:56:54 -0700
commit7b360ee09a8bec5783cbecdcb17cd8d70edadf56 (patch)
tree1f0e15c0e2e5e5c7b3ce1ce6fbebe5f1bde7b24c /drivers/uwb
parent90ec00d54e28f4b038e66905ea5b9478bcdc3f37 (diff)
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>
Diffstat (limited to 'drivers/uwb')
-rw-r--r--drivers/uwb/beacon.c4
-rw-r--r--drivers/uwb/rsv.c14
2 files changed, 15 insertions, 3 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) {
diff --git a/drivers/uwb/rsv.c b/drivers/uwb/rsv.c
index 4026f1adff01..0887ae982783 100644
--- a/drivers/uwb/rsv.c
+++ b/drivers/uwb/rsv.c
@@ -163,8 +163,10 @@ static int uwb_rsv_get_stream(struct uwb_rsv *rsv)
}
stream = find_first_zero_bit(streams_bm, UWB_NUM_STREAMS);
- if (stream >= UWB_NUM_STREAMS)
+ if (stream >= UWB_NUM_STREAMS) {
+ dev_err(dev, "%s: no available stream found\n", __func__);
return -EBUSY;
+ }
rsv->stream = stream;
set_bit(stream, streams_bm);
@@ -555,12 +557,16 @@ int uwb_rsv_establish(struct uwb_rsv *rsv)
{
struct uwb_rc *rc = rsv->rc;
struct uwb_mas_bm available;
+ struct device *dev = &rc->uwb_dev.dev;
int ret;
mutex_lock(&rc->rsvs_mutex);
ret = uwb_rsv_get_stream(rsv);
- if (ret)
+ if (ret) {
+ dev_err(dev, "%s: uwb_rsv_get_stream failed: %d\n",
+ __func__, ret);
goto out;
+ }
rsv->tiebreaker = prandom_u32() & 1;
/* get available mas bitmap */
@@ -570,12 +576,16 @@ int uwb_rsv_establish(struct uwb_rsv *rsv)
if (ret == UWB_RSV_ALLOC_NOT_FOUND) {
ret = -EBUSY;
uwb_rsv_put_stream(rsv);
+ dev_err(dev, "%s: uwb_rsv_find_best_allocation failed: %d\n",
+ __func__, ret);
goto out;
}
ret = uwb_drp_avail_reserve_pending(rc, &rsv->mas);
if (ret != 0) {
uwb_rsv_put_stream(rsv);
+ dev_err(dev, "%s: uwb_drp_avail_reserve_pending failed: %d\n",
+ __func__, ret);
goto out;
}

Privacy Policy