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More less kmem_zalloc(0).

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This commit is contained in:
maxv 2019-10-03 05:16:16 +00:00
parent 1f5569dfbd
commit 6336c2341d
1 changed files with 8 additions and 7 deletions
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15
sys/dev/usb/umidi.c
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@ -1,4 +1,4 @@
/* $NetBSD: umidi.c,v 1.79 2019/09/15 09:18:17 maxv Exp $ */
/* $NetBSD: umidi.c,v 1.80 2019/10/03 05:16:16 maxv Exp $ */
/*
* Copyright (c) 2001, 2012, 2014 The NetBSD Foundation, Inc.
@ -32,7 +32,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: umidi.c,v 1.79 2019/09/15 09:18:17 maxv Exp $");
__KERNEL_RCSID(0, "$NetBSD: umidi.c,v 1.80 2019/10/03 05:16:16 maxv Exp $");
#ifdef _KERNEL_OPT
#include "opt_usb.h"
@ -1081,9 +1081,10 @@ alloc_all_jacks(struct umidi_softc *sc)
cn_spec = NULL;
/* allocate/initialize structures */
sc->sc_jacks =
kmem_zalloc(sizeof(*sc->sc_out_jacks)*(sc->sc_in_num_jacks
+ sc->sc_out_num_jacks), KM_SLEEP);
if (sc->sc_in_num_jacks == 0 && sc->sc_out_num_jacks == 0)
return USBD_INVAL;
sc->sc_jacks = kmem_zalloc(sizeof(*sc->sc_out_jacks) *
(sc->sc_in_num_jacks + sc->sc_out_num_jacks), KM_SLEEP);
if (!sc->sc_jacks)
return USBD_NOMEM;
sc->sc_out_jacks =
@ -1154,8 +1155,8 @@ free_all_jacks(struct umidi_softc *sc)
mutex_enter(&sc->sc_lock);
jacks = sc->sc_jacks;
len = sizeof(*sc->sc_out_jacks)
* (sc->sc_in_num_jacks + sc->sc_out_num_jacks);
len = sizeof(*sc->sc_out_jacks) *
(sc->sc_in_num_jacks + sc->sc_out_num_jacks);
sc->sc_jacks = sc->sc_in_jacks = sc->sc_out_jacks = NULL;
mutex_exit(&sc->sc_lock);