common/dpaax: fix possible null pointer access

This patch fixes possible null pointer access when dump iova table.

Fixes: 2f3d633aa593 ("common/dpaax: add library for PA/VA translation table")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>

diff --git a/drivers/common/dpaax/dpaax_iova_table.c b/drivers/common/dpaax/dpaax_iova_table.c
index 91bee65..54f89e1 100644 (file)
--- a/drivers/common/dpaax/dpaax_iova_table.c
+++ b/drivers/common/dpaax/dpaax_iova_table.c
@@ -366,8 +366,10 @@ dpaax_iova_table_dump(void)
        }
 
        DPAAX_DEBUG(" === Start of PA->VA Translation Table ===");
-       if (dpaax_iova_table_p == NULL)
+       if (dpaax_iova_table_p == NULL) {
                DPAAX_DEBUG("\tNULL");
+               return;
+       }
 
        entry = dpaax_iova_table_p->entries;
        for (i = 0; i < dpaax_iova_table_p->count; i++) {