rawdev: allow drivers to return error from info query

[dpdk.git] / drivers / raw / ntb / ntb.c

diff --git a/drivers/raw/ntb/ntb.c b/drivers/raw/ntb/ntb.c
index c890c43..ced5b6d 100644 (file)
--- a/drivers/raw/ntb/ntb.c
+++ b/drivers/raw/ntb/ntb.c
@@ -800,7 +800,7 @@ end_of_rx:
        return nb_rx;
 }
 
-static void
+static int
 ntb_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info,
                size_t dev_info_size)
 {
@@ -809,7 +809,7 @@ ntb_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info,
 
        if (dev_info_size != sizeof(*info)) {
                NTB_LOG(ERR, "Invalid size parameter to %s", __func__);
-               return;
+               return -EINVAL;
        }
 
        info->mw_cnt = hw->mw_cnt;
@@ -824,7 +824,7 @@ ntb_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info,
 
        if (!hw->queue_size || !hw->queue_pairs) {
                NTB_LOG(ERR, "No queue size and queue num assigned.");
-               return;
+               return -EAGAIN;
        }
 
        hw->hdr_size_per_queue = RTE_ALIGN(sizeof(struct ntb_header) +
@@ -832,6 +832,8 @@ ntb_dev_info_get(struct rte_rawdev *dev, rte_rawdev_obj_t dev_info,
                                hw->queue_size * sizeof(struct ntb_used),
                                RTE_CACHE_LINE_SIZE);
        info->ntb_hdr_size = hw->hdr_size_per_queue * hw->queue_pairs;
+
+       return 0;
 }
 
 static int