[src/trunk]: src/sys/dev/audio audio(4): Clean up about audio_realloc().

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

details:   https://anonhg.NetBSD.org/src/rev/d5abba0f063e
branches:  trunk
changeset: 365755:d5abba0f063e
user:      isaki <isaki%NetBSD.org@localhost>
date:      Sat Apr 23 11:30:57 2022 +0000

description:
audio(4): Clean up about audio_realloc().
- audio_realloc() never returns NULL, so there is no need to check it.
- audio_free() is no point in this case.

diffstat:

 sys/dev/audio/audio.c |  18 ++++--------------
 1 files changed, 4 insertions(+), 14 deletions(-)

diffs (53 lines):

diff -r a099c6958e6c -r d5abba0f063e sys/dev/audio/audio.c
--- a/sys/dev/audio/audio.c     Sat Apr 23 09:59:13 2022 +0000
+++ b/sys/dev/audio/audio.c     Sat Apr 23 11:30:57 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.131 2022/04/23 07:55:07 isaki Exp $        */
+/*     $NetBSD: audio.c,v 1.132 2022/04/23 11:30:57 isaki Exp $        */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -181,7 +181,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.131 2022/04/23 07:55:07 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.132 2022/04/23 11:30:57 isaki Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -3689,7 +3689,8 @@
 {
 
        KASSERT(bytes != 0);
-       audio_free(memblock);
+       if (memblock)
+               kern_free(memblock);
        return kern_malloc(bytes, M_WAITOK);
 }
 
@@ -4776,11 +4777,6 @@
                track->outbuf.capacity *= NBLKOUT;
        len = auring_bytelen(&track->outbuf);
        track->outbuf.mem = audio_realloc(track->outbuf.mem, len);
-       if (track->outbuf.mem == NULL) {
-               device_printf(sc->sc_dev, "malloc outbuf(%d) failed\n", len);
-               error = ENOMEM;
-               goto error;
-       }
 
        /*
         * On the recording track, expand the input stage buffer, which is
@@ -5387,12 +5383,6 @@
                mixer->codecbuf.capacity = mixer->frames_per_block;
                len = auring_bytelen(&mixer->codecbuf);
                mixer->codecbuf.mem = audio_realloc(mixer->codecbuf.mem, len);
-               if (mixer->codecbuf.mem == NULL) {
-                       device_printf(sc->sc_dev,
-                           "malloc codecbuf(%d) failed\n", len);
-                       error = ENOMEM;
-                       goto abort;
-               }
        }
 
        /* Succeeded so display it. */