Only grab the reference count if we need it.

Spotted by: Martin

Only grab the reference count if we need it.
Spotted by: Martin
c461c053 · Poul-Henning Kamp · c1bc0d8e · c461c053
Commit c461c053 authored Mar 01, 2016 by Poul-Henning Kamp
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cache_ban.c bin/varnishd/cache/cache_ban.c +2 -1

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--- a/bin/varnishd/cache/cache_ban.c
+++ b/bin/varnishd/cache/cache_ban.c
@@ -546,7 +546,8 @@ BAN_CheckObject(struct worker *wrk, struct objcore *oc, struct req *req)
 	Lck_Lock(&ban_mtx);
 	b0 = ban_start;
 	bn = oc->ban;
-	bn->refcount++;
+	if (b0 != bn)
+		bn->refcount++;
 	Lck_Unlock(&ban_mtx);

 	AN(bn);