From: Yunjian Wang <wangyunj...@huawei.com>
This patch fixes the use-after-free bug which was reported by Coverity
Scan in the mlx5_dma_unmap function.
Coverity issue: 371679
Fixes: 992e6df3dafe ("common/mlx5: free MR resource on device DMA unmap")
Cc: sta...@dpdk.org
Signed-off-by: Yunjian Wang <wangyunj...@huawei.com>
---
drivers/net/mlx5/mlx5_mr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c
index 89c43fc9e9..e87f138564 100644
--- a/drivers/net/mlx5/mlx5_mr.c
+++ b/drivers/net/mlx5/mlx5_mr.c
@@ -315,9 +315,9 @@ mlx5_dma_unmap(struct rte_pci_device *pdev, void *addr,
return -1;
}
LIST_REMOVE(mr, mr);
- mlx5_mr_free(mr, sh->share_cache.dereg_mr_cb);
DRV_LOG(DEBUG, "port %u remove MR(%p) from list", dev->data->port_id,
(void *)mr);
+ mlx5_mr_free(mr, sh->share_cache.dereg_mr_cb);
mlx5_mr_rebuild_cache(&sh->share_cache);
/*
* No explicit wmb is needed after updating dev_gen due to
--
2.23.0
