[src/trunk]: src/sys/dev/usb uvideo(4): Use kmem_zalloc, not kmem_alloc and m...

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

details:   https://anonhg.NetBSD.org/src/rev/4f7cc10ea2cb
branches:  trunk
changeset: 363438:4f7cc10ea2cb
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sat Mar 12 16:51:10 2022 +0000

description:
uvideo(4): Use kmem_zalloc, not kmem_alloc and memset.

diffstat:

 sys/dev/usb/uvideo.c |  8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diffs (36 lines):

diff -r c1a160e5fc82 -r 4f7cc10ea2cb sys/dev/usb/uvideo.c
--- a/sys/dev/usb/uvideo.c      Sat Mar 12 16:46:57 2022 +0000
+++ b/sys/dev/usb/uvideo.c      Sat Mar 12 16:51:10 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvideo.c,v 1.69 2022/03/03 06:23:25 riastradh Exp $    */
+/*     $NetBSD: uvideo.c,v 1.70 2022/03/12 16:51:10 riastradh Exp $    */
 
 /*
  * Copyright (c) 2008 Patrick Mahoney
@@ -42,7 +42,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvideo.c,v 1.69 2022/03/03 06:23:25 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvideo.c,v 1.70 2022/03/12 16:51:10 riastradh Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -851,7 +851,7 @@
        if (desc->bDescriptorType != UDESC_CS_INTERFACE)
                return NULL;
 
-       vu = kmem_alloc(sizeof(*vu), KM_SLEEP);
+       vu = kmem_zalloc(sizeof(*vu), KM_SLEEP);
        err = uvideo_unit_init(vu, desc);
        if (err != USBD_NORMAL_COMPLETION) {
                DPRINTF(("uvideo_unit_alloc: error initializing unit: "
@@ -875,8 +875,6 @@
        const uvideo_processing_unit_descriptor_t *processing;
        const uvideo_extension_unit_descriptor_t *extension;
 
-       memset(vu, 0, sizeof(*vu));
-
        switch (desc->bDescriptorSubtype) {
        case UDESC_INPUT_TERMINAL:
                if (desc->bLength < sizeof(*input))