common/dpaax: fix possible null pointer access

[ upstream commit 611c394 ]

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

Fixes: 2f3d633 ("common/dpaax: add library for PA/VA translation table")

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>

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++) {