staging: gasket: cleanup if dma_map_page fails in gasket_perform_mapping

Previously pages would have never been unmapped in this case.

Change-Id: I71b6447267933865ab23a3ba3830e7ce3d3e0e57
Signed-off-by: Nick Ewalt <nicholasewalt@google.com>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
1 file changed