Date: Tue, 19 Feb 2008 23:36:18 GMT From: Sam Leffler <sam@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 135759 for review Message-ID: <200802192336.m1JNaIlb037534@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=135759 Change 135759 by sam@sam_ebb on 2008/02/19 23:35:51 sort_channels expects there are channels; avoid calling it with an empty table Affected files ... .. //depot/projects/vap/sys/net80211/ieee80211_regdomain.c#7 edit Differences ... ==== //depot/projects/vap/sys/net80211/ieee80211_regdomain.c#7 (text+ko) ==== @@ -172,6 +172,7 @@ uint8_t *aa = a; uint8_t *ai, *t; + KASSERT(n > 0, ("no channels")); for (ai = aa+size; --n >= 1; ai += size) for (t = ai; t > aa; t -= size) { uint8_t *u = t - size; @@ -191,7 +192,8 @@ void ieee80211_sort_channels(struct ieee80211_channel chans[], int nchans) { - sort_channels(chans, nchans, sizeof(struct ieee80211_channel)); + if (nchans > 0) + sort_channels(chans, nchans, sizeof(struct ieee80211_channel)); } /*
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