On Wed, May 13, 2020 at 09:10:04AM +0200, Wolfram Sang wrote: > > > > - addr_info->added_client = i2c_new_device(to_i2c_adapter(adev), > > > - &addr_info->binfo); > > > + addr_info->added_client = i2c_new_client_device(to_i2c_adapter(adev), > > > + &addr_info->binfo); > > > > i2c_new_client_device returns an ERR_PTR, not NULL on error. So this > > Yes, this is the main motivation for the new API. > > > needs some more work. I'll send something out soon. > > Why does it need that work? 'added_client' is only used with > i2c_unregister_device() which has been fixed to handle ERR_PTR as well. > Or am I missing something? > No, I didn't look to see if i2c_unregister_device could handle that. -corey