mbuf: fix dump of dynamic fields and flags

The dump of dynamic fields and flags fails if the shm is already
allocated. Add a check to fix the issue.

Fixes: d4902ed31c63 ("mbuf: check shared memory before dumping dynamic space")
Cc: stable@dpdk.org
Signed-off-by: Alexander Bechikov <asb.tyum@gmail.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/lib/mbuf/rte_mbuf_dyn.c b/lib/mbuf/rte_mbuf_dyn.c
index db8e020..4ae7938 100644 (file)
--- a/lib/mbuf/rte_mbuf_dyn.c
+++ b/lib/mbuf/rte_mbuf_dyn.c
@@ -531,7 +531,7 @@ void rte_mbuf_dyn_dump(FILE *out)
        size_t i;
 
        rte_mcfg_tailq_write_lock();
-       if (init_shared_mem() < 0) {
+       if (shm == NULL && init_shared_mem() < 0) {
                rte_mcfg_tailq_write_unlock();
                return;
        }