From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Sat, 3 Sep 2011 18:33:06 +0000 (-0400)
Subject: rculfhash: power power of two check should allow 0
X-Git-Tag: v0.7.0~43^2~185
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=49619ea0bfe494a27a62991e5360f0de8e4bdf1f;p=userspace-rcu.git

rculfhash: power power of two check should allow 0

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/rculfhash.c b/rculfhash.c
index 807a22d..174c11c 100644
--- a/rculfhash.c
+++ b/rculfhash.c
@@ -622,7 +622,7 @@ struct cds_lfht *cds_lfht_new(cds_lfht_hash_fct hash_fct,
 	unsigned long order;
 
 	/* init_size must be power of two */
-	if (init_size & (init_size - 1))
+	if (init_size && (init_size & (init_size - 1)))
 		return NULL;
 	ht = calloc(1, sizeof(struct cds_lfht));
 	ht->hash_fct = hash_fct;