[PATCH 2/3] net/vhost: fix leak in interrupt handle setup
David Marchand
david.marchand at redhat.com
Thu Mar 9 13:37:51 CET 2023
Do a systematic cleanup if any part of the interrupt handle setup fails.
Fixes: d61138d4f0e2 ("drivers: remove direct access to interrupt handle")
Cc: stable at dpdk.org
Signed-off-by: David Marchand <david.marchand at redhat.com>
---
drivers/net/vhost/rte_eth_vhost.c | 53 ++++++++++++++++++++-----------
1 file changed, 34 insertions(+), 19 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index 198bf4d1f4..96deb18d91 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -686,25 +686,32 @@ eth_vhost_install_intr(struct rte_eth_dev *dev)
dev->intr_handle = rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_PRIVATE);
if (dev->intr_handle == NULL) {
VHOST_LOG(ERR, "Fail to allocate intr_handle\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto error;
+ }
+ if (rte_intr_efd_counter_size_set(dev->intr_handle, sizeof(uint64_t))) {
+ ret = -rte_errno;
+ goto error;
}
- if (rte_intr_efd_counter_size_set(dev->intr_handle, sizeof(uint64_t)))
- return -rte_errno;
if (rte_intr_vec_list_alloc(dev->intr_handle, NULL, nb_rxq)) {
- VHOST_LOG(ERR,
- "Failed to allocate memory for interrupt vector\n");
- rte_intr_instance_free(dev->intr_handle);
- return -ENOMEM;
+ VHOST_LOG(ERR, "Failed to allocate memory for interrupt vector\n");
+ ret = -ENOMEM;
+ goto error;
}
VHOST_LOG(INFO, "Prepare intr vec\n");
for (i = 0; i < nb_rxq; i++) {
- if (rte_intr_vec_list_index_set(dev->intr_handle, i, RTE_INTR_VEC_RXTX_OFFSET + i))
- return -rte_errno;
- if (rte_intr_efds_index_set(dev->intr_handle, i, -1))
- return -rte_errno;
+ if (rte_intr_vec_list_index_set(dev->intr_handle, i,
+ RTE_INTR_VEC_RXTX_OFFSET + i)) {
+ ret = -rte_errno;
+ goto error;
+ }
+ if (rte_intr_efds_index_set(dev->intr_handle, i, -1)) {
+ ret = -rte_errno;
+ goto error;
+ }
vq = dev->data->rx_queues[i];
if (!vq) {
VHOST_LOG(INFO, "rxq-%d not setup yet, skip!\n", i);
@@ -729,16 +736,24 @@ eth_vhost_install_intr(struct rte_eth_dev *dev)
VHOST_LOG(INFO, "Installed intr vec for rxq-%d\n", i);
}
- if (rte_intr_nb_efd_set(dev->intr_handle, nb_rxq))
- return -rte_errno;
-
- if (rte_intr_max_intr_set(dev->intr_handle, nb_rxq + 1))
- return -rte_errno;
-
- if (rte_intr_type_set(dev->intr_handle, RTE_INTR_HANDLE_VDEV))
- return -rte_errno;
+ if (rte_intr_nb_efd_set(dev->intr_handle, nb_rxq)) {
+ ret = -rte_errno;
+ goto error;
+ }
+ if (rte_intr_max_intr_set(dev->intr_handle, nb_rxq + 1)) {
+ ret = -rte_errno;
+ goto error;
+ }
+ if (rte_intr_type_set(dev->intr_handle, RTE_INTR_HANDLE_VDEV)) {
+ ret = -rte_errno;
+ goto error;
+ }
return 0;
+
+error:
+ eth_vhost_uninstall_intr(dev);
+ return ret;
}
static void
--
2.39.2
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