Author: Cyril Roelandt <tipecaml@gmail.com> The return type of block_device_operations.release() changed to void in commit db2a144b. Found with the following Coccinelle patch: @has_release_func@ identifier i; identifier release_func; @@ struct block_device_operations i = { .release = release_func }; @depends on has_release_func@ identifier has_release_func.release_func; @@ – int + void release_func(…) { … – return …; } Signed-off-by: Cyril …