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Logan Gunthorpe
8ad342a863
Adding a reference count helps drivers to properly implement the unbind while in use case. References are taken and put every time a channel is allocated or freed. Once the final reference is put, the device is removed from the dma_device_list and a release callback function is called to signal the driver to free the memory. Signed-off-by: Logan Gunthorpe <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Vinod Koul <[email protected]>