Commit bd05f28e authored by Roel Kluin's avatar Roel Kluin Committed by John W. Linville
Browse files

cfg80211: test before subtraction on unsigned 



freq_diff is unsigned, so test before subtraction

Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 623d563e

net/wireless/reg.c

+2 −1
Original line number Diff line number Diff line
@@ -380,7 +380,8 @@ 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_diff <= 0 || freq_range->max_bandwidth_khz > freq_diff)

	if (freq_range->end_freq_khz <= freq_range->start_freq_khz ||

			freq_range->max_bandwidth_khz > freq_diff)

		return false;



	return true;