From: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxxxxxxxx>
This was added upstream:
mcgrof at frijol ~/linux-stable (git::master)$ git describe --contains bd05f28e
v2.6.29~3^2~47
commit bd05f28e1a15ae62994fe309a524695fe26dd834
Author: Roel Kluin <roel.kluin at gmail.com>
Date: Tue Mar 3 22:55:21 2009 +0100
cfg80211: test before subtraction on unsigned
freq_diff is unsigned, so test before subtraction
Signed-off-by: Roel Kluin <roel.kluin at gmail.com>
Signed-off-by: John W. Linville <linville at tuxdriver.com>
Signed-off-by: Luis R. Rodriguez <mcgrof at do-not-panic.com>
---
intersect.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/intersect.c b/intersect.c
index aa67dbc..e35f2cc 100644
--- a/intersect.c
+++ b/intersect.c
@@ -30,7 +30,8 @@ static int 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 0;
return 1;
--
1.7.10.4
