Creating an async webservice method

Creating an async webservice method

I've tried to read up on async methods and am now trying to create my own
async method. The method is a webservice call that returns a list of error
logs. I'm not sure that I've understood correctly so I thought I'd share
my code to see if I should do anything different.
All I want the code to do is return a list of errorlogs by calling a
method GetAllErrorLogs(), that is a synchronized method. Since it can take
a second to fetch all the error logs I want to have the opportunity to do
other stuff once I called the GetAllErrorLogs() method. Here is the code.
[WebMethod]
public async Task<List<ErrorLog>> GetAllErrorLogs()
{
List<ErrorLog> errorLogs = new List<ErrorLog>();
await System.Threading.Tasks.Task.Run(() => {
errorLogs = ErrorLogRepository.GetAllErrorLogs();
});
if (errorLogs == null)
return new List<ErrorLog>();
return errorLogs;
}
Thanks!