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[RFC v2 01/18] regulatory: don't allocate too much memory

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From: Johannes Berg <johannes.berg@xxxxxxxxx>

There's no need to allocate one reg rule more
than will be used, reduce the allocations. The
allocation in nl80211 already doesn't allocate
too much space.

Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
 net/wireless/reg.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b6c7ea6..dc0c2ba 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -319,8 +319,9 @@ static int reg_copy_regd(const struct ieee80211_regdomain **dst_regd,
 	int size_of_regd = 0;
 	unsigned int i;
 
-	size_of_regd = sizeof(struct ieee80211_regdomain) +
-	  ((src_regd->n_reg_rules + 1) * sizeof(struct ieee80211_reg_rule));
+	size_of_regd =
+		sizeof(struct ieee80211_regdomain) +
+		src_regd->n_reg_rules * sizeof(struct ieee80211_reg_rule);
 
 	regd = kzalloc(size_of_regd, GFP_KERNEL);
 	if (!regd)
@@ -642,7 +643,7 @@ static struct ieee80211_regdomain *regdom_intersect(
 		return NULL;
 
 	size_of_regd = sizeof(struct ieee80211_regdomain) +
-		((num_rules + 1) * sizeof(struct ieee80211_reg_rule));
+		       num_rules * sizeof(struct ieee80211_reg_rule);
 
 	rd = kzalloc(size_of_regd, GFP_KERNEL);
 	if (!rd)
-- 
1.8.0

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