[Bug 91149] fix man page: read(2) and write(2) can return EINVAL for unaligned access to block devices

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 07 Oct 2022 11:39:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=91149

--- Comment #4 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=1c2be25f6080ee63baeae55e45761e1310d1b756

commit 1c2be25f6080ee63baeae55e45761e1310d1b756
Author:     Benedict Reuschling <bcr@FreeBSD.org>
AuthorDate: 2022-10-07 11:32:37 +0000
Commit:     Benedict Reuschling <bcr@FreeBSD.org>
CommitDate: 2022-10-07 11:32:37 +0000

    Add extra EINVAL information about wrong block size to read(2)/write(2)

    The read system call will return EINVAL if the current file offset is
    not a multiple of the block size. This also applies to write(2). Add an
    entry for EINVAL about this error to both man pages.

    PR:                     91149
    Event:                  Aberdeen Hackathon 2022
    Differential Revision:  https://reviews.freebsd.org/D24617

 lib/libc/sys/read.2  | 4 +++-
 lib/libc/sys/write.2 | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

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