cfg80211: a reg rule is invalid if freq diff is 0
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>
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 8e5d239..34983a8 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -321,7 +321,7 @@
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;