[src/trunk]: src/sys/dev Allow maxused to be an odd number of bytes. This ma...

[nat <nat%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/71ca32726703
branches:  trunk
changeset: 826844:71ca32726703
user:      nat <nat%NetBSD.org@localhost>
date:      Mon Oct 02 07:06:15 2017 +0000

description:
Allow maxused to be an odd number of bytes.  This makes single byte
conversions work for the test described in the PR.

Addresses another part of PR kern/52586.

diffstat:

 sys/dev/auconv.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 8785d494dab9 -r 71ca32726703 sys/dev/auconv.c
--- a/sys/dev/auconv.c  Mon Oct 02 06:37:04 2017 +0000
+++ b/sys/dev/auconv.c  Mon Oct 02 07:06:15 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: auconv.c,v 1.32 2017/10/02 06:06:43 nat Exp $  */
+/*     $NetBSD: auconv.c,v 1.33 2017/10/02 07:06:15 nat Exp $  */
 
 /*
  * Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.32 2017/10/02 06:06:43 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.33 2017/10/02 07:06:15 nat Exp $");
 
 #include <sys/types.h>
 #include <sys/audioio.h>
@@ -512,7 +512,7 @@
        valid = n_validbits / NBBY;                                     \
        target = t_prec / NBBY;                                         \
        this = (stream_filter_t *)self;                                 \
-       max_used = ((max_used / hw) * hw) & ~1;                         \
+       max_used = ((max_used / hw) * hw);                              \
                                                                        \
        if ((err = this->prev->fetch_to(sc, this->prev, this->src,      \
                        max_used)))                                     \