On 2013-04-10 00:05, H Hartley Sweeten wrote:
Introduce a helper function to handle the request_region() for legacy comedi drivers. As pointed out by Ian Abbott, legacy devices are configured manually with the "comedi_config" program. The error messages are useful diagnostics when trying to attach to these boards. Providing a helper function allows consolidating the error messages in the drivers and providing a consistent format for the errors. This helper also sets the dev->iobase automatically for the driver if the request_region() is successful.
I wouldn't have set dev->iobase automatically, just in case some driver wants to request two regions, for example das16.c (and pcl818.c before you removed the unused DMA code).
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