diff --git a/trunk/linux-3.4.x/kernel/relay.c b/trunk/linux-3.4.x/kernel/relay.c
index 94d0e76c6..027aa3250 100644
--- a/trunk/linux-3.4.x/kernel/relay.c
+++ b/trunk/linux-3.4.x/kernel/relay.c
@@ -166,7 +166,7 @@ static struct rchan_buf *relay_create_buf(struct rchan *chan)
 {
 	struct rchan_buf *buf;
 
-	if (chan->n_subbufs > UINT_MAX / sizeof(size_t *))
+	if (chan->n_subbufs > KMALLOC_MAX_SIZE / sizeof(size_t *))
 		return NULL;
 
 	buf = kzalloc(sizeof(struct rchan_buf), GFP_KERNEL);