svn commit: r208699 - head/sys/net80211

[Rui Paulo]

Author: rpaulo
Date: Tue Jun  1 14:20:58 2010
New Revision: 208699
URL: http://svn.freebsd.org/changeset/base/208699

Log:
  Fix resource leaks in ieee80211_ioctl_setchanlist() in case of error.
  
  Found with:	Coverity Prevent(tm)
  CID:		4115
  MFC after:	3 days

Modified:
  head/sys/net80211/ieee80211_ioctl.c

Modified: head/sys/net80211/ieee80211_ioctl.c
==============================================================================
--- head/sys/net80211/ieee80211_ioctl.c	Tue Jun  1 14:18:44 2010	(r208698)
+++ head/sys/net80211/ieee80211_ioctl.c	Tue Jun  1 14:20:58 2010	(r208699)
@@ -1628,8 +1628,10 @@ ieee80211_ioctl_setchanlist(struct ieee8
 	if (list == NULL)
 		return ENOMEM;
 	error = copyin(ireq->i_data, list, ireq->i_len);
-	if (error)
+	if (error) {
+		free(list, M_TEMP);
 		return error;
+	}
 	nchan = 0;
 	chanlist = list + ireq->i_len;		/* NB: zero'd already */
 	maxchan = ireq->i_len * NBBY;
@@ -1645,8 +1647,10 @@ ieee80211_ioctl_setchanlist(struct ieee8
 			nchan++;
 		}
 	}
-	if (nchan == 0)
+	if (nchan == 0) {
+		free(list, M_TEMP);
 		return EINVAL;
+	}
 	if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&	/* XXX */
 	    isclr(chanlist, ic->ic_bsschan->ic_ieee))
 		ic->ic_bsschan = IEEE80211_CHAN_ANYC;