readdir: Fix error check.HEADmain

Now that dd_size is unsigned, we need to check if the return value from
getdirentries() was negative before assigning it to dd_size.

While here, simplify the scandir_error test case slightly, and verify
that calling readdir() again after EOF still returns NULL.

Fixes:		42e613018da5
Sponsored by:	Klara, Inc.
Reviewed by:	kevans
Differential Revision:	https://reviews.freebsd.org/D51266

0 files changed, 0 insertions, 0 deletions