DEVM_REQUEST_RESOURC(9)                Hardware Interfaces                DEVM_REQUEST_RESOURC(9)



NAME
       devm_request_resource - request and reserve an I/O or memory resource

SYNOPSIS
       int devm_request_resource(struct device * dev, struct resource * root,
                                 struct resource * new);

ARGUMENTS
       dev
           device for which to request the resource

       root
           root of the resource tree from which to request the resource

       new
           descriptor of the resource to request

DESCRIPTION
       This is a device-managed version of request_resource. There is usually no need to release
       resources requested by this function explicitly since that will be taken care of when the
       device is unbound from its driver. If for some reason the resource needs to be released
       explicitly, because of ordering issues for example, drivers must call
       devm_release_resource rather than the regular release_resource.

       When a conflict is detected between any existing resources and the newly requested
       resource, an error message will be printed.

       Returns 0 on success or a negative error code on failure.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   DEVM_REQUEST_RESOURC(9)