LinuxKPI: Fix simple_read_from_buffer for zero-size and off-the-end readsHEADmain

I noticed that the buf_size < 0 check can never be true (it's a
size_t) and decided to check for this condition by an alternate
expression, and I also noticed that a read_size of 0 would incorrectly
return -EFAULT.  Instead, return success for both of these cases as
reading beyond the EOF of a normal file also returns EOF, not EINVAL.

Reviewed by:	bz
Sponsored by:	AFRL, DARPA
Differential Revision:	https://reviews.freebsd.org/D55845

0 files changed, 0 insertions, 0 deletions