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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>
This commit is contained in:
Thomas Pugliese 2014-04-25 10:30:33 -05:00 committed by Greg Kroah-Hartman
parent 90ec00d54e
commit 7b360ee09a
2 changed files with 15 additions and 3 deletions
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4
drivers/uwb/beacon.c
View File

@ -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) {

14
drivers/uwb/rsv.c
View File

@ -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;
}