[dpdk-dev] [PATCH v1] net/mlx5: fix existing file removal

[Xueming Li <xuemingl@mellanox.com>]

There is no guarantee that the file won't be removed by external
user/application between the stat() and remove() syscalls, remove() will
fail if the file no longer exists.

Fixes: f8b9a3bad467 ("net/mlx5: install a socket to exchange a file descriptor")

Signed-off-by: Xueming Li <xuemingl@mellanox.com>
---
 drivers/net/mlx5/mlx5_socket.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_socket.c b/drivers/net/mlx5/mlx5_socket.c
index 61c1a4a..fb80fb3 100644
--- a/drivers/net/mlx5/mlx5_socket.c
+++ b/drivers/net/mlx5/mlx5_socket.c
@@ -32,7 +32,6 @@
 	};
 	int ret;
 	int flags;
-	struct stat file_stat;
 
 	/*
 	 * Initialise the socket to communicate with the secondary
@@ -52,9 +51,7 @@
 		goto out;
 	snprintf(sun.sun_path, sizeof(sun.sun_path), "/var/tmp/%s_%d",
 		 MLX5_DRIVER_NAME, priv->primary_socket);
-	ret = stat(sun.sun_path, &file_stat);
-	if (!ret)
-		claim_zero(remove(sun.sun_path));
+	remove(sun.sun_path);
 	ret = bind(priv->primary_socket, (const struct sockaddr *)&sun,
 		   sizeof(sun));
 	if (ret < 0) {
-- 
1.8.3.1