[src/trunk]: src/sys/dev/audio Revise comments.

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

details:   https://anonhg.NetBSD.org/src/rev/f87d1ffe6908
branches:  trunk
changeset: 947201:f87d1ffe6908
user:      isaki <isaki%NetBSD.org@localhost>
date:      Sun Dec 13 05:47:08 2020 +0000

description:
Revise comments.

diffstat:

 sys/dev/audio/audio.c |  11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diffs (39 lines):

diff -r 43acb725b646 -r f87d1ffe6908 sys/dev/audio/audio.c
--- a/sys/dev/audio/audio.c     Sun Dec 13 05:44:09 2020 +0000
+++ b/sys/dev/audio/audio.c     Sun Dec 13 05:47:08 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.84 2020/12/13 05:44:09 isaki Exp $ */
+/*     $NetBSD: audio.c,v 1.85 2020/12/13 05:47:08 isaki Exp $ */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -138,7 +138,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.84 2020/12/13 05:44:09 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.85 2020/12/13 05:47:08 isaki Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -2415,7 +2415,8 @@
 
        /*
         * Acquire exlock to protect counters.
-        * Does not use audio_exlock_enter() due to sc_dying.
+        * audio_exlock_enter() cannot be used here because we have to go
+        * forward even if sc_dying is set.
         */
        while (__predict_false(sc->sc_exlock != 0)) {
                error = cv_timedwait_sig(&sc->sc_exlockcv, sc->sc_lock,
@@ -6153,8 +6154,8 @@
 
 /*
  * Check (and convert) the format *p came from userland.
- * If successful, it writes back the converted format to *p if necessary
- * and returns 0.  Otherwise returns errno (*p may change even this case).
+ * If successful, it writes back the converted format to *p if necessary and
+ * returns 0.  Otherwise returns errno (*p may be changed even in this case).
  */
 static int
 audio_check_params(audio_format2_t *p)