[PATCH v1 1/1] bus/pci: fix resource leak in secondary process

[Anatoly Burakov <anatoly.burakov@intel.com>]

Right after setting up VFIO device, we attempt to fill region information.
This operation can fail, and if it does, we do not release the device fd.
Fix the control flow to free the device fd if getting region info failed.

Fixes: 4b741542ecde ("bus/pci: avoid depending on private kernel value")
Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 drivers/bus/pci/linux/pci_vfio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
index c63721dd61..8562fdcc6b 100644
--- a/drivers/bus/pci/linux/pci_vfio.c
+++ b/drivers/bus/pci/linux/pci_vfio.c
@@ -932,7 +932,7 @@ pci_vfio_map_resource_secondary(struct rte_pci_device *dev)
 	char pci_addr[PATH_MAX] = {0};
 	int vfio_dev_fd;
 	struct rte_pci_addr *loc = &dev->addr;
-	int i, j, ret;
+	int j, ret, i = 0;
 	struct mapped_pci_resource *vfio_res = NULL;
 	struct mapped_pci_res_list *vfio_res_list =
 		RTE_TAILQ_CAST(rte_vfio_tailq.head, mapped_pci_res_list);
@@ -968,7 +968,7 @@ pci_vfio_map_resource_secondary(struct rte_pci_device *dev)
 
 	ret = pci_vfio_fill_regions(dev, vfio_dev_fd, &device_info);
 	if (ret)
-		return ret;
+		goto err_vfio_dev_fd;
 
 	/* map BARs */
 	maps = vfio_res->maps;
-- 
2.47.3