cfg80211: a reg rule is invalid if freq diff is 0
authorLuis R. Rodriguez <lrodriguez@atheros.com>
Thu, 30 Oct 2008 20:33:52 +0000 (13:33 -0700)
committerJohn W. Linville <linville@tuxdriver.com>
Mon, 10 Nov 2008 20:17:41 +0000 (15:17 -0500)
A regulatory rule is invalid when the frequency difference
between the end of the frequency range and the start is 0.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
net/wireless/reg.c

index 8e5d23975a0d9a8c5c9389428a9014a70a52bf8b..34983a825ac1c89a911e79f45ada1c88b351a596 100644 (file)
@@ -321,7 +321,7 @@ static bool is_valid_reg_rule(const struct ieee80211_reg_rule *rule)
 
        freq_diff = freq_range->end_freq_khz - freq_range->start_freq_khz;
 
-       if (freq_range->max_bandwidth_khz > freq_diff)
+       if (freq_diff <= 0 || freq_range->max_bandwidth_khz > freq_diff)
                return false;
 
        return true;