svn commit: r251735 - head/sys/contrib/dev/ath/ath_hal/ar9300

[Adrian Chadd]

Author: adrian
Date: Fri Jun 14 06:14:49 2013
New Revision: 251735
URL: http://svnweb.freebsd.org/changeset/base/251735

Log:
  If chan is NULL, don't derefrence it.
  
  The bluetooth setup code actually does a channel lookup during setup,
  even though we haven't yet programmed in a channel. Sigh.
  
  Tested:
  
  * WB225 (AR9485) + bluetooth

Modified:
  head/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_reset.c

Modified: head/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_reset.c
==============================================================================
--- head/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_reset.c	Fri Jun 14 05:36:47 2013	(r251734)
+++ head/sys/contrib/dev/ath/ath_hal/ar9300/ar9300_reset.c	Fri Jun 14 06:14:49 2013	(r251735)
@@ -778,6 +778,11 @@ ar9300_set_delta_slope(struct ath_hal *a
 HAL_CHANNEL_INTERNAL *
 ar9300_check_chan(struct ath_hal *ah, const struct ieee80211_channel *chan)
 {
+
+    if (chan == NULL) {
+        return AH_NULL;
+    }
+
     if ((IS(chan, CHAN_2GHZ) ^ IS(chan, CHAN_5GHZ)) == 0) {
         HALDEBUG(ah, HAL_DEBUG_CHANNEL,
             "%s: invalid channel %u/0x%x; not marked as 2GHz or 5GHz\n",