From bd05f28e1a15ae62994fe309a524695fe26dd834 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 3 Mar 2009 22:55:21 +0100 Subject: [PATCH] cfg80211: test before subtraction on unsigned freq_diff is unsigned, so test before subtraction Signed-off-by: Roel Kluin Signed-off-by: John W. Linville --- net/wireless/reg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 85c9034c59b..bd0a16c3de5 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -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; -- 2.41.0