mempool: avoid dump crash with null pointer

Check the FILE *f and rte_mempool *mp pointers for NULL.

Signed-off-by: Keith Wiles <keith.wiles@windriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 8f10be8b1c023811518c3dbebe447bb8386c667a..4cf6c25b4572b4d76820ae1681c0b9c349ce9c07 100644 (file)
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -765,6 +765,9 @@ rte_mempool_dump(FILE *f, const struct rte_mempool *mp)
        unsigned common_count;
        unsigned cache_count;
 
+       RTE_VERIFY(f != NULL);
+       RTE_VERIFY(mp != NULL);
+
        fprintf(f, "mempool <%s>@%p\n", mp->name, mp);
        fprintf(f, "  flags=%x\n", mp->flags);
        fprintf(f, "  ring=<%s>@%p\n", mp->ring->name, mp->ring);