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[PATCH 1/6] cfg80211: a reg rule is invalid if freq diff is 0

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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@xxxxxxxxxxx>
---
 net/wireless/reg.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 9dff716..ff706f9 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -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;
-- 
1.5.6.3

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