This patch simplified "stub_device_free" cleanup function:
- changed return type to void, since the return value is
not checked anywhere
- kfree is NULL-safe, so removed if statement
- deleted debug-message
Signed-off-by: Kurt Kanzenbach <ly80toro@cip.cs.fau.de> Signed-off-by: Stefan Reif <ke42caxa@cip.cs.fau.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>