staging: comedi: jr3_pci: use auto_attach method
This driver does not need to support manual attachment of supported PCI devices. Replace the `attach()` hook (`jr3_pci_attach()`) with an `auto_attach()` hook (`jr3_pci_auto_attach()`). This will be called via `comedi_pci_auto_config()` at PCI probe time. This driver no longer increments the PCI reference count during attachment, so remove the call to `pci_dev_put()` when detaching the device. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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