[dpdk-dev] [PATCH v2] rte mempool: division or modulo by zero

[Slawomir Mrozowicz]

Fix issue reported by Coverity.

Coverity ID 13243: Division or modulo by zero
In function call rte_mempool_xmem_size, division by expression total_size
which may be zero has undefined behavior.

Fixes: 148f963fb532 ("xen: core library changes")

Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz at intel.com>
---
 lib/librte_mempool/rte_mempool.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 1ab6701..b54de43 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -239,6 +239,9 @@ rte_mempool_xmem_size(uint32_t elt_num, size_t 
total_elt_sz, uint32_t pg_shift)
 {
        size_t obj_per_page, pg_num, pg_sz;

+       if (total_elt_sz == 0)
+               return 0;
+
        if (pg_shift == 0)
                return total_elt_sz * elt_num;

-- 
1.9.1