mempool: fix first memory area notification

Mempool creation needs to be completed first before notifying mempool to
register the mempool area.

Fixes: 12b8cc1a7e86 ("mempool: notify memory area to pool")
Cc: stable@dpdk.org
Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index d50dba4..6d17022 100644 (file)
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -367,11 +367,6 @@ rte_mempool_populate_iova(struct rte_mempool *mp, char *vaddr,
        struct rte_mempool_memhdr *memhdr;
        int ret;
 
-       /* Notify memory area to mempool */
-       ret = rte_mempool_ops_register_memory_area(mp, vaddr, iova, len);
-       if (ret != -ENOTSUP && ret < 0)
-               return ret;
-
        /* create the internal ring if not already done */
        if ((mp->flags & MEMPOOL_F_POOL_CREATED) == 0) {
                ret = rte_mempool_ops_alloc(mp);
@@ -380,6 +375,11 @@ rte_mempool_populate_iova(struct rte_mempool *mp, char *vaddr,
                mp->flags |= MEMPOOL_F_POOL_CREATED;
        }
 
+       /* Notify memory area to mempool */
+       ret = rte_mempool_ops_register_memory_area(mp, vaddr, iova, len);
+       if (ret != -ENOTSUP && ret < 0)
+               return ret;
+
        /* mempool is already populated */
        if (mp->populated_size >= mp->size)
                return -ENOSPC;