[src/trunk]: src/lib/libusbhid usbhid(3): use reallocarr

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

details:   https://anonhg.NetBSD.org/src/rev/9cadbb3bc00d
branches:  trunk
changeset: 991023:9cadbb3bc00d
user:      nia <nia%NetBSD.org@localhost>
date:      Wed Nov 03 16:18:09 2021 +0000

description:
usbhid(3): use reallocarr

diffstat:

 lib/libusbhid/usage.c |  30 ++++++++++++------------------
 1 files changed, 12 insertions(+), 18 deletions(-)

diffs (69 lines):

diff -r 9a8e31401074 -r 9cadbb3bc00d lib/libusbhid/usage.c
--- a/lib/libusbhid/usage.c     Wed Nov 03 15:10:11 2021 +0000
+++ b/lib/libusbhid/usage.c     Wed Nov 03 16:18:09 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: usage.c,v 1.11 2020/04/04 21:23:04 fox Exp $   */
+/*     $NetBSD: usage.c,v 1.12 2021/11/03 16:18:09 nia Exp $   */
 
 /*
  * Copyright (c) 1999 Lennart Augustsson <augustss%NetBSD.org@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: usage.c,v 1.11 2020/04/04 21:23:04 fox Exp $");
+__RCSID("$NetBSD: usage.c,v 1.12 2021/11/03 16:18:09 nia Exp $");
 
 #include <assert.h>
 #include <ctype.h>
@@ -112,11 +112,9 @@
                                     hidname, lineno);
                        if (curpage->pagesize >= curpage->pagesizemax) {
                                curpage->pagesizemax += 10;
-                               curpage->page_contents =
-                                       realloc(curpage->page_contents,
-                                               curpage->pagesizemax *
-                                               sizeof (struct usage_in_page));
-                               if (!curpage->page_contents)
+                               if (reallocarr(&curpage->page_contents,
+                                               curpage->pagesizemax,
+                                               sizeof (struct usage_in_page)) != 0)
                                        err(1, "realloc");
                        }
                        curpage->page_contents[curpage->pagesize].name = n;
@@ -124,17 +122,13 @@
                        curpage->pagesize++;
                } else {
                        if (npages >= npagesmax) {
-                               if (pages == 0) {
+                               if (pages == NULL) {
                                        npagesmax = 5;
-                                       pages = malloc(npagesmax *
-                                                 sizeof (struct usage_page));
                                } else {
                                        npagesmax += 5;
-                                       pages = realloc(pages,
-                                                  npagesmax *
-                                                  sizeof (struct usage_page));
                                }
-                               if (!pages)
+                               if (reallocarr(&pages, npagesmax,
+                                      sizeof (struct usage_page)) != 0)
                                        err(1, "alloc");
                        }
                        curpage = &pages[npages++];
@@ -142,10 +136,10 @@
                        curpage->usage = no;
                        curpage->pagesize = 0;
                        curpage->pagesizemax = 10;
-                       curpage->page_contents =
-                               malloc(curpage->pagesizemax *
-                                      sizeof (struct usage_in_page));
-                       if (!curpage->page_contents)
+                       curpage->page_contents = NULL;
+                       if (reallocarr(&curpage->page_contents,
+                                      curpage->pagesizemax,
+                                      sizeof (struct usage_in_page)) != 0)
                                err(1, "malloc");
                }
        }