From 0e4e9344d18f3c1c037cc32c0dfab799ad2180b7 Mon Sep 17 00:00:00 2001
From: Arne Goedeke <el@laramies.com>
Date: Thu, 13 Jun 2013 23:35:42 +0200
Subject: [PATCH] block_alloc: memusage stats could overflow
---
src/block_allocator.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/src/block_allocator.c b/src/block_allocator.c
index 44e3fd90e3..56a45a184b 100644
--- a/src/block_allocator.c
+++ b/src/block_allocator.c
@@ -89,9 +89,13 @@ PMOD_EXPORT size_t ba_count(const struct block_allocator * a) {
}
PMOD_EXPORT void ba_count_all(const struct block_allocator * a, size_t * num, size_t * size) {
- size_t n = (a->l.blocks << (a->size-1)) - a->l.blocks;
- *num = n;
- *size = a->l.block_size * n;
+ if (a->size) {
+ size_t n = (a->l.blocks << (a->size-1)) - a->l.blocks;
+ *num = n;
+ *size = a->l.block_size * n;
+ } else {
+ *num = *size = 0;
+ }
}
static void ba_low_alloc(struct block_allocator * a) {
--
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