diff options
Diffstat (limited to 'freebsd/sys/net80211/ieee80211_rssadapt.c')
| -rw-r--r-- | freebsd/sys/net80211/ieee80211_rssadapt.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/freebsd/sys/net80211/ieee80211_rssadapt.c b/freebsd/sys/net80211/ieee80211_rssadapt.c index f05af298..52f81a99 100644 --- a/freebsd/sys/net80211/ieee80211_rssadapt.c +++ b/freebsd/sys/net80211/ieee80211_rssadapt.c @@ -119,12 +119,13 @@ static void rssadapt_setinterval(const struct ieee80211vap *vap, int msecs) { struct ieee80211_rssadapt *rs = vap->iv_rs; - int t; + + if (!rs) + return; if (msecs < 100) msecs = 100; - t = msecs_to_ticks(msecs); - rs->interval = (t < 1) ? 1 : t; + rs->interval = msecs_to_ticks(msecs); } static void @@ -179,6 +180,12 @@ rssadapt_node_init(struct ieee80211_node *ni) struct ieee80211_rssadapt *rsa = vap->iv_rs; const struct ieee80211_rateset *rs = &ni->ni_rates; + if (!rsa) { + if_printf(vap->iv_ifp, "ratectl structure was not allocated, " + "per-node structure allocation skipped\n"); + return; + } + if (ni->ni_rctls == NULL) { ni->ni_rctls = ra = IEEE80211_MALLOC(sizeof(struct ieee80211_rssadapt_node), @@ -233,10 +240,18 @@ rssadapt_rate(struct ieee80211_node *ni, void *arg __unused, uint32_t iarg) { struct ieee80211_rssadapt_node *ra = ni->ni_rctls; u_int pktlen = iarg; - const struct ieee80211_rateset *rs = &ra->ra_rates; + const struct ieee80211_rateset *rs; uint16_t (*thrs)[IEEE80211_RATE_SIZE]; int rix, rssi; + /* XXX should return -1 here, but drivers may not expect this... */ + if (!ra) + { + ni->ni_txrate = ni->ni_rates.rs_rates[0]; + return 0; + } + + rs = &ra->ra_rates; if ((ticks - ra->ra_ticks) > ra->ra_rs->interval) { rssadapt_updatestats(ra); ra->ra_ticks = ticks; @@ -322,6 +337,9 @@ rssadapt_tx_complete(const struct ieee80211_node *ni, struct ieee80211_rssadapt_node *ra = ni->ni_rctls; int pktlen, rssi; + if (!ra) + return; + if ((status->flags & (IEEE80211_RATECTL_STATUS_PKTLEN|IEEE80211_RATECTL_STATUS_RSSI)) != (IEEE80211_RATECTL_STATUS_PKTLEN|IEEE80211_RATECTL_STATUS_RSSI)) @@ -346,9 +364,12 @@ rssadapt_sysctl_interval(SYSCTL_HANDLER_ARGS) { struct ieee80211vap *vap = arg1; struct ieee80211_rssadapt *rs = vap->iv_rs; - int msecs = ticks_to_msecs(rs->interval); - int error; + int msecs, error; + + if (!rs) + return ENOMEM; + msecs = ticks_to_msecs(rs->interval); error = sysctl_handle_int(oidp, &msecs, 0, req); if (error || !req->newptr) return error; |