[PATCH 1/2] net/virtio: propagate return value of called function

[Boleslav Stankevich]

rte_intr_vec_list_alloc() may fail because of different reasons which
are indicated by different negative errno values.

Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: sta...@dpdk.org

Signed-off-by: Boleslav Stankevich <boleslav.stankev...@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
---
 drivers/net/virtio/virtio_ethdev.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c 
b/drivers/net/virtio/virtio_ethdev.c
index ae84d313be..5c8b7b95e9 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1390,6 +1390,7 @@ static int
 virtio_configure_intr(struct rte_eth_dev *dev)
 {
        struct virtio_hw *hw = dev->data->dev_private;
+       int ret;
 
        if (!rte_intr_cap_multiple(dev->intr_handle)) {
                PMD_INIT_LOG(ERR, "Multiple intr vector not supported");
@@ -1401,11 +1402,12 @@ virtio_configure_intr(struct rte_eth_dev *dev)
                return -1;
        }
 
-       if (rte_intr_vec_list_alloc(dev->intr_handle, "intr_vec",
-                                   hw->max_queue_pairs)) {
+       ret = rte_intr_vec_list_alloc(dev->intr_handle, "intr_vec",
+                                     hw->max_queue_pairs);
+       if (ret < 0) {
                PMD_INIT_LOG(ERR, "Failed to allocate %u rxq vectors",
                             hw->max_queue_pairs);
-               return -ENOMEM;
+               return ret;
        }
 
        if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) {
-- 
2.30.2