Re: [PATCH 1/3] drivers: base: Support atomic version of attribute_container_device_trigger

[Greg KH]

On Mon, Jan 06, 2020 at 01:58:15PM -0500, Gabriel Krisman Bertazi wrote:
> attribute_container_device_trigger invokes callbacks that may fail for
> one or more classdev's, for instance, the transport_add_class_device
> callback, called during transport creation, does memory allocation.
> This information, though, is not propagated to upper layers, and any
> driver using the attribute_container_device_trigger API will not know
> whether any, some, or all callbacks succeeded.
> 
> This patch implements a safe version of this dispatcher, to either
> succeed all the callbacks or revert to the original state.
> 
> Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>

Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>