net/mlx5_core: Clear outbox of dealloc uar

The outbox should be cleared before executing the command.

Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/uar.c b/drivers/net/ethernet/mellanox/mlx5/core/uar.c
index 0a6348c..06801d6 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/uar.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/uar.c
@@ -96,6 +96,7 @@ int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn)
        int err;
 
        memset(&in, 0, sizeof(in));
+       memset(&out, 0, sizeof(out));
        in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DEALLOC_UAR);
        in.uarn = cpu_to_be32(uarn);
        err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));