net/mlx5e: free page before return

Instead of directly return, goto the error handling label to free
allocated page.

Fixes: 5f29458b ("net/mlx5e: Support dump callback in TX reporter")
Signed-off-by: NPan Bian <bianpan2016@163.com>
Reviewed-by: NLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en/health.c

@@ -273,7 +273,7 @@ int mlx5e_health_rsc_fmsg_dump(struct mlx5e_priv *priv, struct mlx5_rsc_key *key
 
 	err = devlink_fmsg_binary_pair_nest_start(fmsg, "data");
 	if (err)
-		return err;
+		goto free_page;
 
 	cmd = mlx5_rsc_dump_cmd_create(mdev, key);
 	if (IS_ERR(cmd)) {