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This change uses the devm_kzalloc() function to tie the life-time of the
uio_info object to PCI device. This cleans up the exit & error path a bit.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201120084207.50736-2-alexandru.ardelean@analog.com

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>