tree ac9b46ce9b1d9e24e8158bc9577f061e3aaaaf3a
parent 2958ec177e400be1e26fc37e1759f84fa2c1761c
author Al Viro <viro@zeniv.linux.org.uk> 1459475300 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1459727499 -0400

rw_verify_area(): saner calling conventions

Lift length capping into the few callers that care about it.  Most of
them treat all non-negatives as "success" and ignore the capped value,
and with good reasons.

Make rw_verify_area() return 0 on success.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>