PERFORCE change 112410 for review

[Kip Macy]

http://perforce.freebsd.org/chv.cgi?CH=112410

Change 112410 by kmacy at kmacy_serendipity:sam_wifi on 2007/01/02 03:30:17

	fix read / write of the MAC register errors mentioned in the previous
	commit by serializing the task queue functions with respect to each 
	other 
	(this commit is happening over ural)

Affected files ...

.. //depot/projects/wifi/sys/dev/usb/if_ural.c#13 edit

Differences ...

==== //depot/projects/wifi/sys/dev/usb/if_ural.c#13 (text+ko) ====

@@ -737,6 +737,7 @@
 
 	ostate = ic->ic_state;
 
+	RAL_LOCK(sc);
 	switch (sc->sc_state) {
 	case IEEE80211_S_INIT:
 		if (ostate == IEEE80211_S_RUN) {
@@ -791,6 +792,7 @@
 		break;
 	}
 
+	RAL_UNLOCK(sc);
 	sc->sc_newstate(ic, sc->sc_state, -1);
 }
 
@@ -801,6 +803,7 @@
 	struct ieee80211com *ic = &sc->sc_ic;
 	struct ifnet *ifp = ic->ic_ifp;
 
+	RAL_LOCK(sc);
 	if (sc->sc_scan_action == URAL_SCAN_START) {
 		/* abort TSF synchronization */
 		ural_write(sc, RAL_TXRX_CSR19, 0);
@@ -814,6 +817,7 @@
 		/* XXX keep local copy */
 		ural_set_bssid(sc, ic->ic_bss->ni_bssid);
 	} 
+	RAL_UNLOCK(sc);
 }
 
 static int