common/cnxk: fix null pointer dereference

[ upstream commit ea0d681 ]

Fix null pointer dereference reported in coverity scan.

Coverity issue: 372065
Fixes: 665b6a7 ("common/cnxk: add NPC helper API")

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

drivers/common/cnxk/roc_npc_utils.c

@@ -145,6 +145,9 @@ npc_parse_item_basic(const struct roc_npc_item_info *item,
 			info->mask = item->mask;
 	}
 
+	if (info->mask == NULL)
+		return NPC_ERR_INVALID_MASK;
+
 	/* mask specified must be subset of hw supported mask
 	 * mask | hw_mask == hw_mask
 	 */