[dpdk-dev] [PATCH] rte_mempool_dump() crashes with NULL rte_mempool pointer.

["Wiles, Roger Keith" <keith.wiles@windriver.com>]

Check the FILE *f and rte_mempool *mp pointers for NULL and
return plus print out a message if RTE_LIBRTE_MEMPOOL_DEBUG is enabled.

Signed-off-by: Keith Wiles <keith.wiles@windriver.com>
---
 lib/librte_mempool/rte_mempool.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 332f469..efa6a6c 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -765,6 +765,12 @@ rte_mempool_dump(FILE *f, const struct rte_mempool *mp)
    unsigned common_count;
    unsigned cache_count;

+   if ( (f == NULL) || (mp == NULL) ) {
+#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+       fprintf(stderr, "*** Called rte_mempool_dump(%p, %p) with NULL argument\n", f, mp);
+#endif /* RTE_LIBRTE_MEMPOOL_DEBUG */
+       return;
+   }
    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);
-- 
2.1.0