e4crypt: remove unneeded stat(2) call in do_get_policy()

We don't need to conditionally use O_DIRECTORY when opening a
directory.  Remove the unneeded stat, and a TOCTOU complaint from
Coverity.

Fixes-Coverity-Bug: 1293497
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
1 file changed