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* [dpdk-stable] [dpdk-dev] [PATCH] vfio: fix resource leak when mapping fails
@ 2020-06-21  9:07 Yunjian Wang
  0 siblings, 0 replies; only message in thread
From: Yunjian Wang @ 2020-06-21  9:07 UTC (permalink / raw)
  To: dev, anatoly.burakov; +Cc: Yunjian Wang, stable

Currently, only the 'vfio_dev_fd' is closed in failure path, so
some resources are not released(such as 'vfio_group_fd'). The
rte_vfio_release_device() should be used to avoid this problem.

Fixes: 33604c31354a ("vfio: refactor PCI BAR mapping")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <yunjian.wang@foxmail.com>
---
 drivers/bus/pci/linux/pci_vfio.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
index 64cd84a68..c87373b90 100644
--- a/drivers/bus/pci/linux/pci_vfio.c
+++ b/drivers/bus/pci/linux/pci_vfio.c
@@ -789,7 +789,8 @@ pci_vfio_map_resource_primary(struct rte_pci_device *dev)
 err_vfio_res:
 	rte_free(vfio_res);
 err_vfio_dev_fd:
-	close(vfio_dev_fd);
+	rte_vfio_release_device(rte_pci_get_sysfs_path(),
+				pci_addr, vfio_dev_fd);
 	return -1;
 }
 
@@ -857,7 +858,8 @@ pci_vfio_map_resource_secondary(struct rte_pci_device *dev)
 
 	return 0;
 err_vfio_dev_fd:
-	close(vfio_dev_fd);
+	rte_vfio_release_device(rte_pci_get_sysfs_path(),
+				pci_addr, vfio_dev_fd);
 	return -1;
 }
 
-- 
2.18.1


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2020-06-21  9:07 [dpdk-stable] [dpdk-dev] [PATCH] vfio: fix resource leak when mapping fails Yunjian Wang

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